From 015a31890250e93564959de97372be7bd6195f62 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 3 Nov 2017 17:11:28 -0400
Subject: [PATCH] build: build 2.5.3

---
 dist/vue.common.js                          | 166 ++++++++++++-------
 dist/vue.esm.js                             | 166 ++++++++++++-------
 dist/vue.js                                 | 166 ++++++++++++-------
 dist/vue.min.js                             |   4 +-
 dist/vue.runtime.common.js                  |  99 +++++++----
 dist/vue.runtime.esm.js                     | 105 ++++++++----
 dist/vue.runtime.js                         | 105 ++++++++----
 dist/vue.runtime.min.js                     |   4 +-
 packages/vue-server-renderer/basic.js       | 174 ++++++++++++++++----
 packages/vue-server-renderer/build.js       | 174 ++++++++++++++++----
 packages/vue-server-renderer/package.json   |   2 +-
 packages/vue-template-compiler/browser.js   |  61 +++++--
 packages/vue-template-compiler/build.js     |  61 +++++--
 packages/vue-template-compiler/package.json |   2 +-
 14 files changed, 914 insertions(+), 375 deletions(-)

diff --git a/dist/vue.common.js b/dist/vue.common.js
index a2e14269bf4..5527db3e248 100644
--- a/dist/vue.common.js
+++ b/dist/vue.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.2
+ * Vue.js v2.5.3
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -760,6 +760,7 @@ function createTextVNode (val) {
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
 function cloneVNode (vnode, deep) {
+  var componentOptions = vnode.componentOptions;
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
@@ -767,7 +768,7 @@ function cloneVNode (vnode, deep) {
     vnode.text,
     vnode.elm,
     vnode.context,
-    vnode.componentOptions,
+    componentOptions,
     vnode.asyncFactory
   );
   cloned.ns = vnode.ns;
@@ -775,8 +776,13 @@ function cloneVNode (vnode, deep) {
   cloned.key = vnode.key;
   cloned.isComment = vnode.isComment;
   cloned.isCloned = true;
-  if (deep && vnode.children) {
-    cloned.children = cloneVNodes(vnode.children);
+  if (deep) {
+    if (vnode.children) {
+      cloned.children = cloneVNodes(vnode.children, true);
+    }
+    if (componentOptions && componentOptions.children) {
+      componentOptions.children = cloneVNodes(componentOptions.children, true);
+    }
   }
   return cloned
 }
@@ -1009,7 +1015,7 @@ function set (target, key, val) {
     target.splice(key, 1, val);
     return val
   }
-  if (hasOwn(target, key)) {
+  if (key in target && !(key in Object.prototype)) {
     target[key] = val;
     return val
   }
@@ -1141,7 +1147,7 @@ function mergeDataOrFn (
         typeof parentVal === 'function' ? parentVal.call(this) : parentVal
       )
     }
-  } else if (parentVal || childVal) {
+  } else {
     return function mergedInstanceDataFn () {
       // instance merge
       var instanceData = typeof childVal === 'function'
@@ -1175,7 +1181,7 @@ strats.data = function (
 
       return parentVal
     }
-    return mergeDataOrFn.call(this, parentVal, childVal)
+    return mergeDataOrFn(parentVal, childVal)
   }
 
   return mergeDataOrFn(parentVal, childVal, vm)
@@ -1981,6 +1987,9 @@ function updateListeners (
 /*  */
 
 function mergeVNodeHook (def, hookKey, hook) {
+  if (def instanceof VNode) {
+    def = def.data.hook || (def.data.hook = {});
+  }
   var invoker;
   var oldHook = def[hookKey];
 
@@ -2348,6 +2357,7 @@ function updateComponentListeners (
 ) {
   target = vm;
   updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
+  target = undefined;
 }
 
 function eventsMixin (Vue) {
@@ -2403,7 +2413,7 @@ function eventsMixin (Vue) {
     if (!cbs) {
       return vm
     }
-    if (arguments.length === 1) {
+    if (!fn) {
       vm._events[event] = null;
       return vm
     }
@@ -2465,7 +2475,6 @@ function resolveSlots (
   if (!children) {
     return slots
   }
-  var defaultSlot = [];
   for (var i = 0, l = children.length; i < l; i++) {
     var child = children[i];
     var data = child.data;
@@ -2486,12 +2495,14 @@ function resolveSlots (
         slot.push(child);
       }
     } else {
-      defaultSlot.push(child);
+      (slots.default || (slots.default = [])).push(child);
     }
   }
-  // ignore whitespace
-  if (!defaultSlot.every(isWhitespace)) {
-    slots.default = defaultSlot;
+  // ignore slots that contains only whitespace
+  for (var name$1 in slots) {
+    if (slots[name$1].every(isWhitespace)) {
+      delete slots[name$1];
+    }
   }
   return slots
 }
@@ -3655,6 +3666,7 @@ function renderSlot (
   bindObject
 ) {
   var scopedSlotFn = this.$scopedSlots[name];
+  var nodes;
   if (scopedSlotFn) { // scoped slot
     props = props || {};
     if (bindObject) {
@@ -3666,19 +3678,28 @@ function renderSlot (
       }
       props = extend(extend({}, bindObject), props);
     }
-    return scopedSlotFn(props) || fallback
+    nodes = scopedSlotFn(props) || fallback;
   } else {
     var slotNodes = this.$slots[name];
     // warn duplicate slot usage
-    if (slotNodes && process.env.NODE_ENV !== 'production') {
-      slotNodes._rendered && warn(
-        "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-        "- this will likely cause render errors.",
-        this
-      );
+    if (slotNodes) {
+      if (process.env.NODE_ENV !== 'production' && slotNodes._rendered) {
+        warn(
+          "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
+          "- this will likely cause render errors.",
+          this
+        );
+      }
       slotNodes._rendered = true;
     }
-    return slotNodes || fallback
+    nodes = slotNodes || fallback;
+  }
+
+  var target = props && props.slot;
+  if (target) {
+    return this.$createElement('template', { slot: target }, nodes)
+  } else {
+    return nodes
   }
 }
 
@@ -3781,8 +3802,8 @@ function renderStatic (
 ) {
   // static trees can be rendered once and cached on the contructor options
   // so every instance shares the same cached trees
-  var renderFns = this.$options.staticRenderFns;
-  var cached = renderFns.cached || (renderFns.cached = []);
+  var options = this.$options;
+  var cached = options.cached || (options.cached = []);
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -3792,7 +3813,7 @@ function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
+  tree = cached[index] = options.staticRenderFns[index].call(this._renderProxy, null, this);
   markStatic(tree, ("__static__" + index), false);
   return tree
 }
@@ -4833,8 +4854,8 @@ var KeepAlive = {
       // check pattern
       var name = getComponentName(componentOptions);
       if (name && (
-        (this.include && !matches(this.include, name)) ||
-        (this.exclude && matches(this.exclude, name))
+        (this.exclude && matches(this.exclude, name)) ||
+        (this.include && !matches(this.include, name))
       )) {
         return vnode
       }
@@ -4930,7 +4951,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.2';
+Vue$3.version = '2.5.3';
 
 /*  */
 
@@ -5911,9 +5932,12 @@ function createPatchFunction (backend) {
           // create an empty node and replace it
           oldVnode = emptyNodeAt(oldVnode);
         }
+
         // replacing existing element
         var oldElm = oldVnode.elm;
         var parentElm$1 = nodeOps.parentNode(oldElm);
+
+        // create new node
         createElm(
           vnode,
           insertedVnodeQueue,
@@ -5924,9 +5948,8 @@ function createPatchFunction (backend) {
           nodeOps.nextSibling(oldElm)
         );
 
+        // update parent placeholder node element, recursively
         if (isDef(vnode.parent)) {
-          // component root element replaced.
-          // update parent placeholder node element, recursively
           var ancestor = vnode.parent;
           var patchable = isPatchable(vnode);
           while (ancestor) {
@@ -5955,6 +5978,7 @@ function createPatchFunction (backend) {
           }
         }
 
+        // destroy old node
         if (isDef(parentElm$1)) {
           removeVnodes(parentElm$1, [oldVnode], 0, 0);
         } else if (isDef(oldVnode.tag)) {
@@ -6020,14 +6044,14 @@ function _update (oldVnode, vnode) {
       }
     };
     if (isCreate) {
-      mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', callInsert);
+      mergeVNodeHook(vnode, 'insert', callInsert);
     } else {
       callInsert();
     }
   }
 
   if (dirsWithPostpatch.length) {
-    mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'postpatch', function () {
+    mergeVNodeHook(vnode, 'postpatch', function () {
       for (var i = 0; i < dirsWithPostpatch.length; i++) {
         callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
       }
@@ -6812,6 +6836,7 @@ function updateDOMListeners (oldVnode, vnode) {
   target$1 = vnode.elm;
   normalizeEvents(on);
   updateListeners(on, oldOn, add$1, remove$2, vnode.context);
+  target$1 = undefined;
 }
 
 var events = {
@@ -7417,7 +7442,7 @@ function enter (vnode, toggleDisplay) {
 
   if (!vnode.data.show) {
     // remove pending leave element on enter by injecting an insert hook
-    mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', function () {
+    mergeVNodeHook(vnode, 'insert', function () {
       var parent = el.parentNode;
       var pendingNode = parent && parent._pending && parent._pending[vnode.key];
       if (pendingNode &&
@@ -7656,10 +7681,17 @@ if (isIE9) {
   });
 }
 
-var model$1 = {
-  inserted: function inserted (el, binding, vnode) {
+var directive = {
+  inserted: function inserted (el, binding, vnode, oldVnode) {
     if (vnode.tag === 'select') {
-      setSelected(el, binding, vnode.context);
+      // #6903
+      if (oldVnode.elm && !oldVnode.elm._vOptions) {
+        mergeVNodeHook(vnode, 'postpatch', function () {
+          directive.componentUpdated(el, binding, vnode);
+        });
+      } else {
+        setSelected(el, binding, vnode.context);
+      }
       el._vOptions = [].map.call(el.options, getValue);
     } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
       el._vModifiers = binding.modifiers;
@@ -7680,6 +7712,7 @@ var model$1 = {
       }
     }
   },
+
   componentUpdated: function componentUpdated (el, binding, vnode) {
     if (vnode.tag === 'select') {
       setSelected(el, binding, vnode.context);
@@ -7838,7 +7871,7 @@ var show = {
 };
 
 var platformDirectives = {
-  model: model$1,
+  model: directive,
   show: show
 };
 
@@ -8255,19 +8288,6 @@ Vue$3.nextTick(function () {
 
 /*  */
 
-// check whether current browser encodes a char inside attribute values
-function shouldDecode (content, encoded) {
-  var div = document.createElement('div');
-  div.innerHTML = "<div a=\"" + content + "\"/>";
-  return div.innerHTML.indexOf(encoded) > 0
-}
-
-// #3663
-// IE encodes newlines inside attribute values while other browsers don't
-var shouldDecodeNewlines = inBrowser ? shouldDecode('\n', '&#10;') : false;
-
-/*  */
-
 var defaultTagRE = /\{\{((?:.|\n)+?)\}\}/g;
 var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
 
@@ -8464,10 +8484,11 @@ var decodingMap = {
   '&gt;': '>',
   '&quot;': '"',
   '&amp;': '&',
-  '&#10;': '\n'
+  '&#10;': '\n',
+  '&#9;': '\t'
 };
 var encodedAttr = /&(?:lt|gt|quot|amp);/g;
-var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10);/g;
+var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
 
 // #5992
 var isIgnoreNewlineTag = makeMap('pre,textarea', true);
@@ -8658,12 +8679,12 @@ function parseHTML (html, options) {
         if (args[5] === '') { delete args[5]; }
       }
       var value = args[3] || args[4] || args[5] || '';
+      var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
+        ? options.shouldDecodeNewlinesForHref
+        : options.shouldDecodeNewlines;
       attrs[i] = {
         name: args[1],
-        value: decodeAttr(
-          value,
-          options.shouldDecodeNewlines
-        )
+        value: decodeAttr(value, shouldDecodeNewlines)
       };
     }
 
@@ -8822,6 +8843,7 @@ function parse (
     isUnaryTag: options.isUnaryTag,
     canBeLeftOpenTag: options.canBeLeftOpenTag,
     shouldDecodeNewlines: options.shouldDecodeNewlines,
+    shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
     shouldKeepComment: options.comments,
     start: function start (tag, attrs, unary) {
       // check namespace.
@@ -9180,7 +9202,7 @@ function processSlot (el) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
       // preserve slot as an attribute for native shadow DOM compat
       // only for non-scoped slots.
-      if (!el.slotScope) {
+      if (el.tag !== 'template' && !el.slotScope) {
         addAttr(el, 'slot', slotTarget);
       }
     }
@@ -9269,6 +9291,13 @@ function processAttrs (el) {
         }
       }
       addAttr(el, name, JSON.stringify(value));
+      // #6887 firefox doesn't update muted state if set via attribute
+      // even immediately after element creation
+      if (!el.component &&
+          name === 'muted' &&
+          platformMustUseProp(el.tag, el.attrsMap.type, name)) {
+        addProp(el, name, 'true');
+      }
     }
   }
 }
@@ -9373,6 +9402,8 @@ function preTransformNode (el, options) {
       var typeBinding = getBindingAttr(el, 'type');
       var ifCondition = getAndRemoveAttr(el, 'v-if', true);
       var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
+      var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
+      var elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
       // 1. checkbox
       var branch0 = cloneASTElement(el);
       // process for on the main node
@@ -9403,6 +9434,13 @@ function preTransformNode (el, options) {
         exp: ifCondition,
         block: branch2
       });
+
+      if (hasElse) {
+        branch0.else = true;
+      } else if (elseIfCondition) {
+        branch0.elseif = elseIfCondition;
+      }
+
       return branch0
     }
   }
@@ -10469,6 +10507,21 @@ var compileToFunctions = ref$1.compileToFunctions;
 
 /*  */
 
+// check whether current browser encodes a char inside attribute values
+var div;
+function getShouldDecode (href) {
+  div = div || document.createElement('div');
+  div.innerHTML = href ? "<a href=\"\n\"/>" : "<div a=\"\n\"/>";
+  return div.innerHTML.indexOf('&#10;') > 0
+}
+
+// #3663: IE encodes newlines inside attribute values while other browsers don't
+var shouldDecodeNewlines = inBrowser ? getShouldDecode(false) : false;
+// #6828: chrome encodes content in a[href]
+var shouldDecodeNewlinesForHref = inBrowser ? getShouldDecode(true) : false;
+
+/*  */
+
 var idToTemplate = cached(function (id) {
   var el = query(id);
   return el && el.innerHTML
@@ -10524,6 +10577,7 @@ Vue$3.prototype.$mount = function (
 
       var ref = compileToFunctions(template, {
         shouldDecodeNewlines: shouldDecodeNewlines,
+        shouldDecodeNewlinesForHref: shouldDecodeNewlinesForHref,
         delimiters: options.delimiters,
         comments: options.comments
       }, this);
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index beaec6fc3f1..b623498876a 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.2
+ * Vue.js v2.5.3
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -758,6 +758,7 @@ function createTextVNode (val) {
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
 function cloneVNode (vnode, deep) {
+  var componentOptions = vnode.componentOptions;
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
@@ -765,7 +766,7 @@ function cloneVNode (vnode, deep) {
     vnode.text,
     vnode.elm,
     vnode.context,
-    vnode.componentOptions,
+    componentOptions,
     vnode.asyncFactory
   );
   cloned.ns = vnode.ns;
@@ -773,8 +774,13 @@ function cloneVNode (vnode, deep) {
   cloned.key = vnode.key;
   cloned.isComment = vnode.isComment;
   cloned.isCloned = true;
-  if (deep && vnode.children) {
-    cloned.children = cloneVNodes(vnode.children);
+  if (deep) {
+    if (vnode.children) {
+      cloned.children = cloneVNodes(vnode.children, true);
+    }
+    if (componentOptions && componentOptions.children) {
+      componentOptions.children = cloneVNodes(componentOptions.children, true);
+    }
   }
   return cloned
 }
@@ -1007,7 +1013,7 @@ function set (target, key, val) {
     target.splice(key, 1, val);
     return val
   }
-  if (hasOwn(target, key)) {
+  if (key in target && !(key in Object.prototype)) {
     target[key] = val;
     return val
   }
@@ -1139,7 +1145,7 @@ function mergeDataOrFn (
         typeof parentVal === 'function' ? parentVal.call(this) : parentVal
       )
     }
-  } else if (parentVal || childVal) {
+  } else {
     return function mergedInstanceDataFn () {
       // instance merge
       var instanceData = typeof childVal === 'function'
@@ -1173,7 +1179,7 @@ strats.data = function (
 
       return parentVal
     }
-    return mergeDataOrFn.call(this, parentVal, childVal)
+    return mergeDataOrFn(parentVal, childVal)
   }
 
   return mergeDataOrFn(parentVal, childVal, vm)
@@ -1979,6 +1985,9 @@ function updateListeners (
 /*  */
 
 function mergeVNodeHook (def, hookKey, hook) {
+  if (def instanceof VNode) {
+    def = def.data.hook || (def.data.hook = {});
+  }
   var invoker;
   var oldHook = def[hookKey];
 
@@ -2346,6 +2355,7 @@ function updateComponentListeners (
 ) {
   target = vm;
   updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
+  target = undefined;
 }
 
 function eventsMixin (Vue) {
@@ -2401,7 +2411,7 @@ function eventsMixin (Vue) {
     if (!cbs) {
       return vm
     }
-    if (arguments.length === 1) {
+    if (!fn) {
       vm._events[event] = null;
       return vm
     }
@@ -2463,7 +2473,6 @@ function resolveSlots (
   if (!children) {
     return slots
   }
-  var defaultSlot = [];
   for (var i = 0, l = children.length; i < l; i++) {
     var child = children[i];
     var data = child.data;
@@ -2484,12 +2493,14 @@ function resolveSlots (
         slot.push(child);
       }
     } else {
-      defaultSlot.push(child);
+      (slots.default || (slots.default = [])).push(child);
     }
   }
-  // ignore whitespace
-  if (!defaultSlot.every(isWhitespace)) {
-    slots.default = defaultSlot;
+  // ignore slots that contains only whitespace
+  for (var name$1 in slots) {
+    if (slots[name$1].every(isWhitespace)) {
+      delete slots[name$1];
+    }
   }
   return slots
 }
@@ -3653,6 +3664,7 @@ function renderSlot (
   bindObject
 ) {
   var scopedSlotFn = this.$scopedSlots[name];
+  var nodes;
   if (scopedSlotFn) { // scoped slot
     props = props || {};
     if (bindObject) {
@@ -3664,19 +3676,28 @@ function renderSlot (
       }
       props = extend(extend({}, bindObject), props);
     }
-    return scopedSlotFn(props) || fallback
+    nodes = scopedSlotFn(props) || fallback;
   } else {
     var slotNodes = this.$slots[name];
     // warn duplicate slot usage
-    if (slotNodes && process.env.NODE_ENV !== 'production') {
-      slotNodes._rendered && warn(
-        "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-        "- this will likely cause render errors.",
-        this
-      );
+    if (slotNodes) {
+      if (process.env.NODE_ENV !== 'production' && slotNodes._rendered) {
+        warn(
+          "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
+          "- this will likely cause render errors.",
+          this
+        );
+      }
       slotNodes._rendered = true;
     }
-    return slotNodes || fallback
+    nodes = slotNodes || fallback;
+  }
+
+  var target = props && props.slot;
+  if (target) {
+    return this.$createElement('template', { slot: target }, nodes)
+  } else {
+    return nodes
   }
 }
 
@@ -3779,8 +3800,8 @@ function renderStatic (
 ) {
   // static trees can be rendered once and cached on the contructor options
   // so every instance shares the same cached trees
-  var renderFns = this.$options.staticRenderFns;
-  var cached = renderFns.cached || (renderFns.cached = []);
+  var options = this.$options;
+  var cached = options.cached || (options.cached = []);
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -3790,7 +3811,7 @@ function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
+  tree = cached[index] = options.staticRenderFns[index].call(this._renderProxy, null, this);
   markStatic(tree, ("__static__" + index), false);
   return tree
 }
@@ -4831,8 +4852,8 @@ var KeepAlive = {
       // check pattern
       var name = getComponentName(componentOptions);
       if (name && (
-        (this.include && !matches(this.include, name)) ||
-        (this.exclude && matches(this.exclude, name))
+        (this.exclude && matches(this.exclude, name)) ||
+        (this.include && !matches(this.include, name))
       )) {
         return vnode
       }
@@ -4928,7 +4949,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.2';
+Vue$3.version = '2.5.3';
 
 /*  */
 
@@ -5909,9 +5930,12 @@ function createPatchFunction (backend) {
           // create an empty node and replace it
           oldVnode = emptyNodeAt(oldVnode);
         }
+
         // replacing existing element
         var oldElm = oldVnode.elm;
         var parentElm$1 = nodeOps.parentNode(oldElm);
+
+        // create new node
         createElm(
           vnode,
           insertedVnodeQueue,
@@ -5922,9 +5946,8 @@ function createPatchFunction (backend) {
           nodeOps.nextSibling(oldElm)
         );
 
+        // update parent placeholder node element, recursively
         if (isDef(vnode.parent)) {
-          // component root element replaced.
-          // update parent placeholder node element, recursively
           var ancestor = vnode.parent;
           var patchable = isPatchable(vnode);
           while (ancestor) {
@@ -5953,6 +5976,7 @@ function createPatchFunction (backend) {
           }
         }
 
+        // destroy old node
         if (isDef(parentElm$1)) {
           removeVnodes(parentElm$1, [oldVnode], 0, 0);
         } else if (isDef(oldVnode.tag)) {
@@ -6018,14 +6042,14 @@ function _update (oldVnode, vnode) {
       }
     };
     if (isCreate) {
-      mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', callInsert);
+      mergeVNodeHook(vnode, 'insert', callInsert);
     } else {
       callInsert();
     }
   }
 
   if (dirsWithPostpatch.length) {
-    mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'postpatch', function () {
+    mergeVNodeHook(vnode, 'postpatch', function () {
       for (var i = 0; i < dirsWithPostpatch.length; i++) {
         callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
       }
@@ -6810,6 +6834,7 @@ function updateDOMListeners (oldVnode, vnode) {
   target$1 = vnode.elm;
   normalizeEvents(on);
   updateListeners(on, oldOn, add$1, remove$2, vnode.context);
+  target$1 = undefined;
 }
 
 var events = {
@@ -7415,7 +7440,7 @@ function enter (vnode, toggleDisplay) {
 
   if (!vnode.data.show) {
     // remove pending leave element on enter by injecting an insert hook
-    mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', function () {
+    mergeVNodeHook(vnode, 'insert', function () {
       var parent = el.parentNode;
       var pendingNode = parent && parent._pending && parent._pending[vnode.key];
       if (pendingNode &&
@@ -7654,10 +7679,17 @@ if (isIE9) {
   });
 }
 
-var model$1 = {
-  inserted: function inserted (el, binding, vnode) {
+var directive = {
+  inserted: function inserted (el, binding, vnode, oldVnode) {
     if (vnode.tag === 'select') {
-      setSelected(el, binding, vnode.context);
+      // #6903
+      if (oldVnode.elm && !oldVnode.elm._vOptions) {
+        mergeVNodeHook(vnode, 'postpatch', function () {
+          directive.componentUpdated(el, binding, vnode);
+        });
+      } else {
+        setSelected(el, binding, vnode.context);
+      }
       el._vOptions = [].map.call(el.options, getValue);
     } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
       el._vModifiers = binding.modifiers;
@@ -7678,6 +7710,7 @@ var model$1 = {
       }
     }
   },
+
   componentUpdated: function componentUpdated (el, binding, vnode) {
     if (vnode.tag === 'select') {
       setSelected(el, binding, vnode.context);
@@ -7836,7 +7869,7 @@ var show = {
 };
 
 var platformDirectives = {
-  model: model$1,
+  model: directive,
   show: show
 };
 
@@ -8253,19 +8286,6 @@ Vue$3.nextTick(function () {
 
 /*  */
 
-// check whether current browser encodes a char inside attribute values
-function shouldDecode (content, encoded) {
-  var div = document.createElement('div');
-  div.innerHTML = "<div a=\"" + content + "\"/>";
-  return div.innerHTML.indexOf(encoded) > 0
-}
-
-// #3663
-// IE encodes newlines inside attribute values while other browsers don't
-var shouldDecodeNewlines = inBrowser ? shouldDecode('\n', '&#10;') : false;
-
-/*  */
-
 var defaultTagRE = /\{\{((?:.|\n)+?)\}\}/g;
 var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
 
@@ -8462,10 +8482,11 @@ var decodingMap = {
   '&gt;': '>',
   '&quot;': '"',
   '&amp;': '&',
-  '&#10;': '\n'
+  '&#10;': '\n',
+  '&#9;': '\t'
 };
 var encodedAttr = /&(?:lt|gt|quot|amp);/g;
-var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10);/g;
+var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
 
 // #5992
 var isIgnoreNewlineTag = makeMap('pre,textarea', true);
@@ -8656,12 +8677,12 @@ function parseHTML (html, options) {
         if (args[5] === '') { delete args[5]; }
       }
       var value = args[3] || args[4] || args[5] || '';
+      var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
+        ? options.shouldDecodeNewlinesForHref
+        : options.shouldDecodeNewlines;
       attrs[i] = {
         name: args[1],
-        value: decodeAttr(
-          value,
-          options.shouldDecodeNewlines
-        )
+        value: decodeAttr(value, shouldDecodeNewlines)
       };
     }
 
@@ -8820,6 +8841,7 @@ function parse (
     isUnaryTag: options.isUnaryTag,
     canBeLeftOpenTag: options.canBeLeftOpenTag,
     shouldDecodeNewlines: options.shouldDecodeNewlines,
+    shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
     shouldKeepComment: options.comments,
     start: function start (tag, attrs, unary) {
       // check namespace.
@@ -9178,7 +9200,7 @@ function processSlot (el) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
       // preserve slot as an attribute for native shadow DOM compat
       // only for non-scoped slots.
-      if (!el.slotScope) {
+      if (el.tag !== 'template' && !el.slotScope) {
         addAttr(el, 'slot', slotTarget);
       }
     }
@@ -9267,6 +9289,13 @@ function processAttrs (el) {
         }
       }
       addAttr(el, name, JSON.stringify(value));
+      // #6887 firefox doesn't update muted state if set via attribute
+      // even immediately after element creation
+      if (!el.component &&
+          name === 'muted' &&
+          platformMustUseProp(el.tag, el.attrsMap.type, name)) {
+        addProp(el, name, 'true');
+      }
     }
   }
 }
@@ -9371,6 +9400,8 @@ function preTransformNode (el, options) {
       var typeBinding = getBindingAttr(el, 'type');
       var ifCondition = getAndRemoveAttr(el, 'v-if', true);
       var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
+      var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
+      var elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
       // 1. checkbox
       var branch0 = cloneASTElement(el);
       // process for on the main node
@@ -9401,6 +9432,13 @@ function preTransformNode (el, options) {
         exp: ifCondition,
         block: branch2
       });
+
+      if (hasElse) {
+        branch0.else = true;
+      } else if (elseIfCondition) {
+        branch0.elseif = elseIfCondition;
+      }
+
       return branch0
     }
   }
@@ -10467,6 +10505,21 @@ var compileToFunctions = ref$1.compileToFunctions;
 
 /*  */
 
+// check whether current browser encodes a char inside attribute values
+var div;
+function getShouldDecode (href) {
+  div = div || document.createElement('div');
+  div.innerHTML = href ? "<a href=\"\n\"/>" : "<div a=\"\n\"/>";
+  return div.innerHTML.indexOf('&#10;') > 0
+}
+
+// #3663: IE encodes newlines inside attribute values while other browsers don't
+var shouldDecodeNewlines = inBrowser ? getShouldDecode(false) : false;
+// #6828: chrome encodes content in a[href]
+var shouldDecodeNewlinesForHref = inBrowser ? getShouldDecode(true) : false;
+
+/*  */
+
 var idToTemplate = cached(function (id) {
   var el = query(id);
   return el && el.innerHTML
@@ -10522,6 +10575,7 @@ Vue$3.prototype.$mount = function (
 
       var ref = compileToFunctions(template, {
         shouldDecodeNewlines: shouldDecodeNewlines,
+        shouldDecodeNewlinesForHref: shouldDecodeNewlinesForHref,
         delimiters: options.delimiters,
         comments: options.comments
       }, this);
diff --git a/dist/vue.js b/dist/vue.js
index 1d2b02ea047..0f3458d64bb 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.2
+ * Vue.js v2.5.3
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -764,6 +764,7 @@ function createTextVNode (val) {
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
 function cloneVNode (vnode, deep) {
+  var componentOptions = vnode.componentOptions;
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
@@ -771,7 +772,7 @@ function cloneVNode (vnode, deep) {
     vnode.text,
     vnode.elm,
     vnode.context,
-    vnode.componentOptions,
+    componentOptions,
     vnode.asyncFactory
   );
   cloned.ns = vnode.ns;
@@ -779,8 +780,13 @@ function cloneVNode (vnode, deep) {
   cloned.key = vnode.key;
   cloned.isComment = vnode.isComment;
   cloned.isCloned = true;
-  if (deep && vnode.children) {
-    cloned.children = cloneVNodes(vnode.children);
+  if (deep) {
+    if (vnode.children) {
+      cloned.children = cloneVNodes(vnode.children, true);
+    }
+    if (componentOptions && componentOptions.children) {
+      componentOptions.children = cloneVNodes(componentOptions.children, true);
+    }
   }
   return cloned
 }
@@ -1013,7 +1019,7 @@ function set (target, key, val) {
     target.splice(key, 1, val);
     return val
   }
-  if (hasOwn(target, key)) {
+  if (key in target && !(key in Object.prototype)) {
     target[key] = val;
     return val
   }
@@ -1145,7 +1151,7 @@ function mergeDataOrFn (
         typeof parentVal === 'function' ? parentVal.call(this) : parentVal
       )
     }
-  } else if (parentVal || childVal) {
+  } else {
     return function mergedInstanceDataFn () {
       // instance merge
       var instanceData = typeof childVal === 'function'
@@ -1179,7 +1185,7 @@ strats.data = function (
 
       return parentVal
     }
-    return mergeDataOrFn.call(this, parentVal, childVal)
+    return mergeDataOrFn(parentVal, childVal)
   }
 
   return mergeDataOrFn(parentVal, childVal, vm)
@@ -1985,6 +1991,9 @@ function updateListeners (
 /*  */
 
 function mergeVNodeHook (def, hookKey, hook) {
+  if (def instanceof VNode) {
+    def = def.data.hook || (def.data.hook = {});
+  }
   var invoker;
   var oldHook = def[hookKey];
 
@@ -2350,6 +2359,7 @@ function updateComponentListeners (
 ) {
   target = vm;
   updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
+  target = undefined;
 }
 
 function eventsMixin (Vue) {
@@ -2405,7 +2415,7 @@ function eventsMixin (Vue) {
     if (!cbs) {
       return vm
     }
-    if (arguments.length === 1) {
+    if (!fn) {
       vm._events[event] = null;
       return vm
     }
@@ -2467,7 +2477,6 @@ function resolveSlots (
   if (!children) {
     return slots
   }
-  var defaultSlot = [];
   for (var i = 0, l = children.length; i < l; i++) {
     var child = children[i];
     var data = child.data;
@@ -2488,12 +2497,14 @@ function resolveSlots (
         slot.push(child);
       }
     } else {
-      defaultSlot.push(child);
+      (slots.default || (slots.default = [])).push(child);
     }
   }
-  // ignore whitespace
-  if (!defaultSlot.every(isWhitespace)) {
-    slots.default = defaultSlot;
+  // ignore slots that contains only whitespace
+  for (var name$1 in slots) {
+    if (slots[name$1].every(isWhitespace)) {
+      delete slots[name$1];
+    }
   }
   return slots
 }
@@ -3651,6 +3662,7 @@ function renderSlot (
   bindObject
 ) {
   var scopedSlotFn = this.$scopedSlots[name];
+  var nodes;
   if (scopedSlotFn) { // scoped slot
     props = props || {};
     if (bindObject) {
@@ -3662,19 +3674,28 @@ function renderSlot (
       }
       props = extend(extend({}, bindObject), props);
     }
-    return scopedSlotFn(props) || fallback
+    nodes = scopedSlotFn(props) || fallback;
   } else {
     var slotNodes = this.$slots[name];
     // warn duplicate slot usage
-    if (slotNodes && "development" !== 'production') {
-      slotNodes._rendered && warn(
-        "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-        "- this will likely cause render errors.",
-        this
-      );
+    if (slotNodes) {
+      if ("development" !== 'production' && slotNodes._rendered) {
+        warn(
+          "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
+          "- this will likely cause render errors.",
+          this
+        );
+      }
       slotNodes._rendered = true;
     }
-    return slotNodes || fallback
+    nodes = slotNodes || fallback;
+  }
+
+  var target = props && props.slot;
+  if (target) {
+    return this.$createElement('template', { slot: target }, nodes)
+  } else {
+    return nodes
   }
 }
 
@@ -3777,8 +3798,8 @@ function renderStatic (
 ) {
   // static trees can be rendered once and cached on the contructor options
   // so every instance shares the same cached trees
-  var renderFns = this.$options.staticRenderFns;
-  var cached = renderFns.cached || (renderFns.cached = []);
+  var options = this.$options;
+  var cached = options.cached || (options.cached = []);
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -3788,7 +3809,7 @@ function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
+  tree = cached[index] = options.staticRenderFns[index].call(this._renderProxy, null, this);
   markStatic(tree, ("__static__" + index), false);
   return tree
 }
@@ -4822,8 +4843,8 @@ var KeepAlive = {
       // check pattern
       var name = getComponentName(componentOptions);
       if (name && (
-        (this.include && !matches(this.include, name)) ||
-        (this.exclude && matches(this.exclude, name))
+        (this.exclude && matches(this.exclude, name)) ||
+        (this.include && !matches(this.include, name))
       )) {
         return vnode
       }
@@ -4919,7 +4940,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.2';
+Vue$3.version = '2.5.3';
 
 /*  */
 
@@ -5900,9 +5921,12 @@ function createPatchFunction (backend) {
           // create an empty node and replace it
           oldVnode = emptyNodeAt(oldVnode);
         }
+
         // replacing existing element
         var oldElm = oldVnode.elm;
         var parentElm$1 = nodeOps.parentNode(oldElm);
+
+        // create new node
         createElm(
           vnode,
           insertedVnodeQueue,
@@ -5913,9 +5937,8 @@ function createPatchFunction (backend) {
           nodeOps.nextSibling(oldElm)
         );
 
+        // update parent placeholder node element, recursively
         if (isDef(vnode.parent)) {
-          // component root element replaced.
-          // update parent placeholder node element, recursively
           var ancestor = vnode.parent;
           var patchable = isPatchable(vnode);
           while (ancestor) {
@@ -5944,6 +5967,7 @@ function createPatchFunction (backend) {
           }
         }
 
+        // destroy old node
         if (isDef(parentElm$1)) {
           removeVnodes(parentElm$1, [oldVnode], 0, 0);
         } else if (isDef(oldVnode.tag)) {
@@ -6009,14 +6033,14 @@ function _update (oldVnode, vnode) {
       }
     };
     if (isCreate) {
-      mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', callInsert);
+      mergeVNodeHook(vnode, 'insert', callInsert);
     } else {
       callInsert();
     }
   }
 
   if (dirsWithPostpatch.length) {
-    mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'postpatch', function () {
+    mergeVNodeHook(vnode, 'postpatch', function () {
       for (var i = 0; i < dirsWithPostpatch.length; i++) {
         callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
       }
@@ -6801,6 +6825,7 @@ function updateDOMListeners (oldVnode, vnode) {
   target$1 = vnode.elm;
   normalizeEvents(on);
   updateListeners(on, oldOn, add$1, remove$2, vnode.context);
+  target$1 = undefined;
 }
 
 var events = {
@@ -7406,7 +7431,7 @@ function enter (vnode, toggleDisplay) {
 
   if (!vnode.data.show) {
     // remove pending leave element on enter by injecting an insert hook
-    mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', function () {
+    mergeVNodeHook(vnode, 'insert', function () {
       var parent = el.parentNode;
       var pendingNode = parent && parent._pending && parent._pending[vnode.key];
       if (pendingNode &&
@@ -7645,10 +7670,17 @@ if (isIE9) {
   });
 }
 
-var model$1 = {
-  inserted: function inserted (el, binding, vnode) {
+var directive = {
+  inserted: function inserted (el, binding, vnode, oldVnode) {
     if (vnode.tag === 'select') {
-      setSelected(el, binding, vnode.context);
+      // #6903
+      if (oldVnode.elm && !oldVnode.elm._vOptions) {
+        mergeVNodeHook(vnode, 'postpatch', function () {
+          directive.componentUpdated(el, binding, vnode);
+        });
+      } else {
+        setSelected(el, binding, vnode.context);
+      }
       el._vOptions = [].map.call(el.options, getValue);
     } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
       el._vModifiers = binding.modifiers;
@@ -7669,6 +7701,7 @@ var model$1 = {
       }
     }
   },
+
   componentUpdated: function componentUpdated (el, binding, vnode) {
     if (vnode.tag === 'select') {
       setSelected(el, binding, vnode.context);
@@ -7827,7 +7860,7 @@ var show = {
 };
 
 var platformDirectives = {
-  model: model$1,
+  model: directive,
   show: show
 };
 
@@ -8244,19 +8277,6 @@ Vue$3.nextTick(function () {
 
 /*  */
 
-// check whether current browser encodes a char inside attribute values
-function shouldDecode (content, encoded) {
-  var div = document.createElement('div');
-  div.innerHTML = "<div a=\"" + content + "\"/>";
-  return div.innerHTML.indexOf(encoded) > 0
-}
-
-// #3663
-// IE encodes newlines inside attribute values while other browsers don't
-var shouldDecodeNewlines = inBrowser ? shouldDecode('\n', '&#10;') : false;
-
-/*  */
-
 var defaultTagRE = /\{\{((?:.|\n)+?)\}\}/g;
 var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
 
@@ -8453,10 +8473,11 @@ var decodingMap = {
   '&gt;': '>',
   '&quot;': '"',
   '&amp;': '&',
-  '&#10;': '\n'
+  '&#10;': '\n',
+  '&#9;': '\t'
 };
 var encodedAttr = /&(?:lt|gt|quot|amp);/g;
-var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10);/g;
+var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
 
 // #5992
 var isIgnoreNewlineTag = makeMap('pre,textarea', true);
@@ -8647,12 +8668,12 @@ function parseHTML (html, options) {
         if (args[5] === '') { delete args[5]; }
       }
       var value = args[3] || args[4] || args[5] || '';
+      var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
+        ? options.shouldDecodeNewlinesForHref
+        : options.shouldDecodeNewlines;
       attrs[i] = {
         name: args[1],
-        value: decodeAttr(
-          value,
-          options.shouldDecodeNewlines
-        )
+        value: decodeAttr(value, shouldDecodeNewlines)
       };
     }
 
@@ -8811,6 +8832,7 @@ function parse (
     isUnaryTag: options.isUnaryTag,
     canBeLeftOpenTag: options.canBeLeftOpenTag,
     shouldDecodeNewlines: options.shouldDecodeNewlines,
+    shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
     shouldKeepComment: options.comments,
     start: function start (tag, attrs, unary) {
       // check namespace.
@@ -9169,7 +9191,7 @@ function processSlot (el) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
       // preserve slot as an attribute for native shadow DOM compat
       // only for non-scoped slots.
-      if (!el.slotScope) {
+      if (el.tag !== 'template' && !el.slotScope) {
         addAttr(el, 'slot', slotTarget);
       }
     }
@@ -9258,6 +9280,13 @@ function processAttrs (el) {
         }
       }
       addAttr(el, name, JSON.stringify(value));
+      // #6887 firefox doesn't update muted state if set via attribute
+      // even immediately after element creation
+      if (!el.component &&
+          name === 'muted' &&
+          platformMustUseProp(el.tag, el.attrsMap.type, name)) {
+        addProp(el, name, 'true');
+      }
     }
   }
 }
@@ -9362,6 +9391,8 @@ function preTransformNode (el, options) {
       var typeBinding = getBindingAttr(el, 'type');
       var ifCondition = getAndRemoveAttr(el, 'v-if', true);
       var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
+      var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
+      var elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
       // 1. checkbox
       var branch0 = cloneASTElement(el);
       // process for on the main node
@@ -9392,6 +9423,13 @@ function preTransformNode (el, options) {
         exp: ifCondition,
         block: branch2
       });
+
+      if (hasElse) {
+        branch0.else = true;
+      } else if (elseIfCondition) {
+        branch0.elseif = elseIfCondition;
+      }
+
       return branch0
     }
   }
@@ -10458,6 +10496,21 @@ var compileToFunctions = ref$1.compileToFunctions;
 
 /*  */
 
+// check whether current browser encodes a char inside attribute values
+var div;
+function getShouldDecode (href) {
+  div = div || document.createElement('div');
+  div.innerHTML = href ? "<a href=\"\n\"/>" : "<div a=\"\n\"/>";
+  return div.innerHTML.indexOf('&#10;') > 0
+}
+
+// #3663: IE encodes newlines inside attribute values while other browsers don't
+var shouldDecodeNewlines = inBrowser ? getShouldDecode(false) : false;
+// #6828: chrome encodes content in a[href]
+var shouldDecodeNewlinesForHref = inBrowser ? getShouldDecode(true) : false;
+
+/*  */
+
 var idToTemplate = cached(function (id) {
   var el = query(id);
   return el && el.innerHTML
@@ -10513,6 +10566,7 @@ Vue$3.prototype.$mount = function (
 
       var ref = compileToFunctions(template, {
         shouldDecodeNewlines: shouldDecodeNewlines,
+        shouldDecodeNewlinesForHref: shouldDecodeNewlinesForHref,
         delimiters: options.delimiters,
         comments: options.comments
       }, this);
diff --git a/dist/vue.min.js b/dist/vue.min.js
index 30eb181a922..3bc6c463096 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.2
+ * Vue.js v2.5.3
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
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2")},oc={on:function(e,t){e.wrapListeners=function(e){return"_g("+e+","+t.value+")"}},bind:function(e,t){e.wrapData=function(n){return"_b("+n+",'"+e.tag+"',"+t.value+","+(t.modifiers&&t.modifiers.prop?"true":"false")+(t.modifiers&&t.modifiers.sync?",true":"")+")"}},cloak:_},ac=function(e){this.options=e,this.warn=e.warn||cn,this.transforms=un(e.modules,"transformCode"),this.dataGenFns=un(e.modules,"genData"),this.directives=y(y({},oc),e.directives);var t=e.isReservedTag||Di;this.maybeComponent=function(e){return!t(e.tag)},this.onceId=0,this.staticRenderFns=[]},sc=(new RegExp("\\b"+"do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,super,throw,while,yield,delete,export,import,return,switch,default,extends,finally,continue,debugger,function,arguments".split(",").join("\\b|\\b")+"\\b"),new RegExp("\\b"+"delete,typeof,void".split(",").join("\\s*\\([^\\)]*\\)|\\b")+"\\s*\\([^\\)]*\\)"),function(e){return function(t){function n(n,r){var 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diff --git a/dist/vue.runtime.common.js b/dist/vue.runtime.common.js
index 18b21e77bb6..23689454263 100644
--- a/dist/vue.runtime.common.js
+++ b/dist/vue.runtime.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.2
+ * Vue.js v2.5.3
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -756,6 +756,7 @@ function createTextVNode (val) {
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
 function cloneVNode (vnode, deep) {
+  var componentOptions = vnode.componentOptions;
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
@@ -763,7 +764,7 @@ function cloneVNode (vnode, deep) {
     vnode.text,
     vnode.elm,
     vnode.context,
-    vnode.componentOptions,
+    componentOptions,
     vnode.asyncFactory
   );
   cloned.ns = vnode.ns;
@@ -771,8 +772,13 @@ function cloneVNode (vnode, deep) {
   cloned.key = vnode.key;
   cloned.isComment = vnode.isComment;
   cloned.isCloned = true;
-  if (deep && vnode.children) {
-    cloned.children = cloneVNodes(vnode.children);
+  if (deep) {
+    if (vnode.children) {
+      cloned.children = cloneVNodes(vnode.children, true);
+    }
+    if (componentOptions && componentOptions.children) {
+      componentOptions.children = cloneVNodes(componentOptions.children, true);
+    }
   }
   return cloned
 }
@@ -1005,7 +1011,7 @@ function set (target, key, val) {
     target.splice(key, 1, val);
     return val
   }
-  if (hasOwn(target, key)) {
+  if (key in target && !(key in Object.prototype)) {
     target[key] = val;
     return val
   }
@@ -1137,7 +1143,7 @@ function mergeDataOrFn (
         typeof parentVal === 'function' ? parentVal.call(this) : parentVal
       )
     }
-  } else if (parentVal || childVal) {
+  } else {
     return function mergedInstanceDataFn () {
       // instance merge
       var instanceData = typeof childVal === 'function'
@@ -1171,7 +1177,7 @@ strats.data = function (
 
       return parentVal
     }
-    return mergeDataOrFn.call(this, parentVal, childVal)
+    return mergeDataOrFn(parentVal, childVal)
   }
 
   return mergeDataOrFn(parentVal, childVal, vm)
@@ -1977,6 +1983,9 @@ function updateListeners (
 /*  */
 
 function mergeVNodeHook (def, hookKey, hook) {
+  if (def instanceof VNode) {
+    def = def.data.hook || (def.data.hook = {});
+  }
   var invoker;
   var oldHook = def[hookKey];
 
@@ -2344,6 +2353,7 @@ function updateComponentListeners (
 ) {
   target = vm;
   updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
+  target = undefined;
 }
 
 function eventsMixin (Vue) {
@@ -2399,7 +2409,7 @@ function eventsMixin (Vue) {
     if (!cbs) {
       return vm
     }
-    if (arguments.length === 1) {
+    if (!fn) {
       vm._events[event] = null;
       return vm
     }
@@ -2461,7 +2471,6 @@ function resolveSlots (
   if (!children) {
     return slots
   }
-  var defaultSlot = [];
   for (var i = 0, l = children.length; i < l; i++) {
     var child = children[i];
     var data = child.data;
@@ -2482,12 +2491,14 @@ function resolveSlots (
         slot.push(child);
       }
     } else {
-      defaultSlot.push(child);
+      (slots.default || (slots.default = [])).push(child);
     }
   }
-  // ignore whitespace
-  if (!defaultSlot.every(isWhitespace)) {
-    slots.default = defaultSlot;
+  // ignore slots that contains only whitespace
+  for (var name$1 in slots) {
+    if (slots[name$1].every(isWhitespace)) {
+      delete slots[name$1];
+    }
   }
   return slots
 }
@@ -3651,6 +3662,7 @@ function renderSlot (
   bindObject
 ) {
   var scopedSlotFn = this.$scopedSlots[name];
+  var nodes;
   if (scopedSlotFn) { // scoped slot
     props = props || {};
     if (bindObject) {
@@ -3662,19 +3674,28 @@ function renderSlot (
       }
       props = extend(extend({}, bindObject), props);
     }
-    return scopedSlotFn(props) || fallback
+    nodes = scopedSlotFn(props) || fallback;
   } else {
     var slotNodes = this.$slots[name];
     // warn duplicate slot usage
-    if (slotNodes && process.env.NODE_ENV !== 'production') {
-      slotNodes._rendered && warn(
-        "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-        "- this will likely cause render errors.",
-        this
-      );
+    if (slotNodes) {
+      if (process.env.NODE_ENV !== 'production' && slotNodes._rendered) {
+        warn(
+          "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
+          "- this will likely cause render errors.",
+          this
+        );
+      }
       slotNodes._rendered = true;
     }
-    return slotNodes || fallback
+    nodes = slotNodes || fallback;
+  }
+
+  var target = props && props.slot;
+  if (target) {
+    return this.$createElement('template', { slot: target }, nodes)
+  } else {
+    return nodes
   }
 }
 
@@ -4829,8 +4850,8 @@ var KeepAlive = {
       // check pattern
       var name = getComponentName(componentOptions);
       if (name && (
-        (this.include && !matches(this.include, name)) ||
-        (this.exclude && matches(this.exclude, name))
+        (this.exclude && matches(this.exclude, name)) ||
+        (this.include && !matches(this.include, name))
       )) {
         return vnode
       }
@@ -4926,7 +4947,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.2';
+Vue$3.version = '2.5.3';
 
 /*  */
 
@@ -5907,9 +5928,12 @@ function createPatchFunction (backend) {
           // create an empty node and replace it
           oldVnode = emptyNodeAt(oldVnode);
         }
+
         // replacing existing element
         var oldElm = oldVnode.elm;
         var parentElm$1 = nodeOps.parentNode(oldElm);
+
+        // create new node
         createElm(
           vnode,
           insertedVnodeQueue,
@@ -5920,9 +5944,8 @@ function createPatchFunction (backend) {
           nodeOps.nextSibling(oldElm)
         );
 
+        // update parent placeholder node element, recursively
         if (isDef(vnode.parent)) {
-          // component root element replaced.
-          // update parent placeholder node element, recursively
           var ancestor = vnode.parent;
           var patchable = isPatchable(vnode);
           while (ancestor) {
@@ -5951,6 +5974,7 @@ function createPatchFunction (backend) {
           }
         }
 
+        // destroy old node
         if (isDef(parentElm$1)) {
           removeVnodes(parentElm$1, [oldVnode], 0, 0);
         } else if (isDef(oldVnode.tag)) {
@@ -6016,14 +6040,14 @@ function _update (oldVnode, vnode) {
       }
     };
     if (isCreate) {
-      mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', callInsert);
+      mergeVNodeHook(vnode, 'insert', callInsert);
     } else {
       callInsert();
     }
   }
 
   if (dirsWithPostpatch.length) {
-    mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'postpatch', function () {
+    mergeVNodeHook(vnode, 'postpatch', function () {
       for (var i = 0; i < dirsWithPostpatch.length; i++) {
         callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
       }
@@ -6315,6 +6339,7 @@ function updateDOMListeners (oldVnode, vnode) {
   target$1 = vnode.elm;
   normalizeEvents(on);
   updateListeners(on, oldOn, add$1, remove$2, vnode.context);
+  target$1 = undefined;
 }
 
 var events = {
@@ -6920,7 +6945,7 @@ function enter (vnode, toggleDisplay) {
 
   if (!vnode.data.show) {
     // remove pending leave element on enter by injecting an insert hook
-    mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', function () {
+    mergeVNodeHook(vnode, 'insert', function () {
       var parent = el.parentNode;
       var pendingNode = parent && parent._pending && parent._pending[vnode.key];
       if (pendingNode &&
@@ -7159,10 +7184,17 @@ if (isIE9) {
   });
 }
 
-var model$1 = {
-  inserted: function inserted (el, binding, vnode) {
+var directive = {
+  inserted: function inserted (el, binding, vnode, oldVnode) {
     if (vnode.tag === 'select') {
-      setSelected(el, binding, vnode.context);
+      // #6903
+      if (oldVnode.elm && !oldVnode.elm._vOptions) {
+        mergeVNodeHook(vnode, 'postpatch', function () {
+          directive.componentUpdated(el, binding, vnode);
+        });
+      } else {
+        setSelected(el, binding, vnode.context);
+      }
       el._vOptions = [].map.call(el.options, getValue);
     } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
       el._vModifiers = binding.modifiers;
@@ -7183,6 +7215,7 @@ var model$1 = {
       }
     }
   },
+
   componentUpdated: function componentUpdated (el, binding, vnode) {
     if (vnode.tag === 'select') {
       setSelected(el, binding, vnode.context);
@@ -7341,7 +7374,7 @@ var show = {
 };
 
 var platformDirectives = {
-  model: model$1,
+  model: directive,
   show: show
 };
 
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index fe84e3f45e3..d6f7bc5a676 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.2
+ * Vue.js v2.5.3
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -754,6 +754,7 @@ function createTextVNode (val) {
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
 function cloneVNode (vnode, deep) {
+  var componentOptions = vnode.componentOptions;
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
@@ -761,7 +762,7 @@ function cloneVNode (vnode, deep) {
     vnode.text,
     vnode.elm,
     vnode.context,
-    vnode.componentOptions,
+    componentOptions,
     vnode.asyncFactory
   );
   cloned.ns = vnode.ns;
@@ -769,8 +770,13 @@ function cloneVNode (vnode, deep) {
   cloned.key = vnode.key;
   cloned.isComment = vnode.isComment;
   cloned.isCloned = true;
-  if (deep && vnode.children) {
-    cloned.children = cloneVNodes(vnode.children);
+  if (deep) {
+    if (vnode.children) {
+      cloned.children = cloneVNodes(vnode.children, true);
+    }
+    if (componentOptions && componentOptions.children) {
+      componentOptions.children = cloneVNodes(componentOptions.children, true);
+    }
   }
   return cloned
 }
@@ -1003,7 +1009,7 @@ function set (target, key, val) {
     target.splice(key, 1, val);
     return val
   }
-  if (hasOwn(target, key)) {
+  if (key in target && !(key in Object.prototype)) {
     target[key] = val;
     return val
   }
@@ -1135,7 +1141,7 @@ function mergeDataOrFn (
         typeof parentVal === 'function' ? parentVal.call(this) : parentVal
       )
     }
-  } else if (parentVal || childVal) {
+  } else {
     return function mergedInstanceDataFn () {
       // instance merge
       var instanceData = typeof childVal === 'function'
@@ -1169,7 +1175,7 @@ strats.data = function (
 
       return parentVal
     }
-    return mergeDataOrFn.call(this, parentVal, childVal)
+    return mergeDataOrFn(parentVal, childVal)
   }
 
   return mergeDataOrFn(parentVal, childVal, vm)
@@ -1975,6 +1981,9 @@ function updateListeners (
 /*  */
 
 function mergeVNodeHook (def, hookKey, hook) {
+  if (def instanceof VNode) {
+    def = def.data.hook || (def.data.hook = {});
+  }
   var invoker;
   var oldHook = def[hookKey];
 
@@ -2342,6 +2351,7 @@ function updateComponentListeners (
 ) {
   target = vm;
   updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
+  target = undefined;
 }
 
 function eventsMixin (Vue) {
@@ -2397,7 +2407,7 @@ function eventsMixin (Vue) {
     if (!cbs) {
       return vm
     }
-    if (arguments.length === 1) {
+    if (!fn) {
       vm._events[event] = null;
       return vm
     }
@@ -2459,7 +2469,6 @@ function resolveSlots (
   if (!children) {
     return slots
   }
-  var defaultSlot = [];
   for (var i = 0, l = children.length; i < l; i++) {
     var child = children[i];
     var data = child.data;
@@ -2480,12 +2489,14 @@ function resolveSlots (
         slot.push(child);
       }
     } else {
-      defaultSlot.push(child);
+      (slots.default || (slots.default = [])).push(child);
     }
   }
-  // ignore whitespace
-  if (!defaultSlot.every(isWhitespace)) {
-    slots.default = defaultSlot;
+  // ignore slots that contains only whitespace
+  for (var name$1 in slots) {
+    if (slots[name$1].every(isWhitespace)) {
+      delete slots[name$1];
+    }
   }
   return slots
 }
@@ -3649,6 +3660,7 @@ function renderSlot (
   bindObject
 ) {
   var scopedSlotFn = this.$scopedSlots[name];
+  var nodes;
   if (scopedSlotFn) { // scoped slot
     props = props || {};
     if (bindObject) {
@@ -3660,19 +3672,28 @@ function renderSlot (
       }
       props = extend(extend({}, bindObject), props);
     }
-    return scopedSlotFn(props) || fallback
+    nodes = scopedSlotFn(props) || fallback;
   } else {
     var slotNodes = this.$slots[name];
     // warn duplicate slot usage
-    if (slotNodes && process.env.NODE_ENV !== 'production') {
-      slotNodes._rendered && warn(
-        "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-        "- this will likely cause render errors.",
-        this
-      );
+    if (slotNodes) {
+      if (process.env.NODE_ENV !== 'production' && slotNodes._rendered) {
+        warn(
+          "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
+          "- this will likely cause render errors.",
+          this
+        );
+      }
       slotNodes._rendered = true;
     }
-    return slotNodes || fallback
+    nodes = slotNodes || fallback;
+  }
+
+  var target = props && props.slot;
+  if (target) {
+    return this.$createElement('template', { slot: target }, nodes)
+  } else {
+    return nodes
   }
 }
 
@@ -3775,8 +3796,8 @@ function renderStatic (
 ) {
   // static trees can be rendered once and cached on the contructor options
   // so every instance shares the same cached trees
-  var renderFns = this.$options.staticRenderFns;
-  var cached = renderFns.cached || (renderFns.cached = []);
+  var options = this.$options;
+  var cached = options.cached || (options.cached = []);
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -3786,7 +3807,7 @@ function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
+  tree = cached[index] = options.staticRenderFns[index].call(this._renderProxy, null, this);
   markStatic(tree, ("__static__" + index), false);
   return tree
 }
@@ -4827,8 +4848,8 @@ var KeepAlive = {
       // check pattern
       var name = getComponentName(componentOptions);
       if (name && (
-        (this.include && !matches(this.include, name)) ||
-        (this.exclude && matches(this.exclude, name))
+        (this.exclude && matches(this.exclude, name)) ||
+        (this.include && !matches(this.include, name))
       )) {
         return vnode
       }
@@ -4924,7 +4945,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.2';
+Vue$3.version = '2.5.3';
 
 /*  */
 
@@ -5905,9 +5926,12 @@ function createPatchFunction (backend) {
           // create an empty node and replace it
           oldVnode = emptyNodeAt(oldVnode);
         }
+
         // replacing existing element
         var oldElm = oldVnode.elm;
         var parentElm$1 = nodeOps.parentNode(oldElm);
+
+        // create new node
         createElm(
           vnode,
           insertedVnodeQueue,
@@ -5918,9 +5942,8 @@ function createPatchFunction (backend) {
           nodeOps.nextSibling(oldElm)
         );
 
+        // update parent placeholder node element, recursively
         if (isDef(vnode.parent)) {
-          // component root element replaced.
-          // update parent placeholder node element, recursively
           var ancestor = vnode.parent;
           var patchable = isPatchable(vnode);
           while (ancestor) {
@@ -5949,6 +5972,7 @@ function createPatchFunction (backend) {
           }
         }
 
+        // destroy old node
         if (isDef(parentElm$1)) {
           removeVnodes(parentElm$1, [oldVnode], 0, 0);
         } else if (isDef(oldVnode.tag)) {
@@ -6014,14 +6038,14 @@ function _update (oldVnode, vnode) {
       }
     };
     if (isCreate) {
-      mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', callInsert);
+      mergeVNodeHook(vnode, 'insert', callInsert);
     } else {
       callInsert();
     }
   }
 
   if (dirsWithPostpatch.length) {
-    mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'postpatch', function () {
+    mergeVNodeHook(vnode, 'postpatch', function () {
       for (var i = 0; i < dirsWithPostpatch.length; i++) {
         callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
       }
@@ -6313,6 +6337,7 @@ function updateDOMListeners (oldVnode, vnode) {
   target$1 = vnode.elm;
   normalizeEvents(on);
   updateListeners(on, oldOn, add$1, remove$2, vnode.context);
+  target$1 = undefined;
 }
 
 var events = {
@@ -6918,7 +6943,7 @@ function enter (vnode, toggleDisplay) {
 
   if (!vnode.data.show) {
     // remove pending leave element on enter by injecting an insert hook
-    mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', function () {
+    mergeVNodeHook(vnode, 'insert', function () {
       var parent = el.parentNode;
       var pendingNode = parent && parent._pending && parent._pending[vnode.key];
       if (pendingNode &&
@@ -7157,10 +7182,17 @@ if (isIE9) {
   });
 }
 
-var model$1 = {
-  inserted: function inserted (el, binding, vnode) {
+var directive = {
+  inserted: function inserted (el, binding, vnode, oldVnode) {
     if (vnode.tag === 'select') {
-      setSelected(el, binding, vnode.context);
+      // #6903
+      if (oldVnode.elm && !oldVnode.elm._vOptions) {
+        mergeVNodeHook(vnode, 'postpatch', function () {
+          directive.componentUpdated(el, binding, vnode);
+        });
+      } else {
+        setSelected(el, binding, vnode.context);
+      }
       el._vOptions = [].map.call(el.options, getValue);
     } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
       el._vModifiers = binding.modifiers;
@@ -7181,6 +7213,7 @@ var model$1 = {
       }
     }
   },
+
   componentUpdated: function componentUpdated (el, binding, vnode) {
     if (vnode.tag === 'select') {
       setSelected(el, binding, vnode.context);
@@ -7339,7 +7372,7 @@ var show = {
 };
 
 var platformDirectives = {
-  model: model$1,
+  model: directive,
   show: show
 };
 
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index 16ff77614f3..10f03be4bb1 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.2
+ * Vue.js v2.5.3
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -760,6 +760,7 @@ function createTextVNode (val) {
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
 function cloneVNode (vnode, deep) {
+  var componentOptions = vnode.componentOptions;
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
@@ -767,7 +768,7 @@ function cloneVNode (vnode, deep) {
     vnode.text,
     vnode.elm,
     vnode.context,
-    vnode.componentOptions,
+    componentOptions,
     vnode.asyncFactory
   );
   cloned.ns = vnode.ns;
@@ -775,8 +776,13 @@ function cloneVNode (vnode, deep) {
   cloned.key = vnode.key;
   cloned.isComment = vnode.isComment;
   cloned.isCloned = true;
-  if (deep && vnode.children) {
-    cloned.children = cloneVNodes(vnode.children);
+  if (deep) {
+    if (vnode.children) {
+      cloned.children = cloneVNodes(vnode.children, true);
+    }
+    if (componentOptions && componentOptions.children) {
+      componentOptions.children = cloneVNodes(componentOptions.children, true);
+    }
   }
   return cloned
 }
@@ -1009,7 +1015,7 @@ function set (target, key, val) {
     target.splice(key, 1, val);
     return val
   }
-  if (hasOwn(target, key)) {
+  if (key in target && !(key in Object.prototype)) {
     target[key] = val;
     return val
   }
@@ -1141,7 +1147,7 @@ function mergeDataOrFn (
         typeof parentVal === 'function' ? parentVal.call(this) : parentVal
       )
     }
-  } else if (parentVal || childVal) {
+  } else {
     return function mergedInstanceDataFn () {
       // instance merge
       var instanceData = typeof childVal === 'function'
@@ -1175,7 +1181,7 @@ strats.data = function (
 
       return parentVal
     }
-    return mergeDataOrFn.call(this, parentVal, childVal)
+    return mergeDataOrFn(parentVal, childVal)
   }
 
   return mergeDataOrFn(parentVal, childVal, vm)
@@ -1981,6 +1987,9 @@ function updateListeners (
 /*  */
 
 function mergeVNodeHook (def, hookKey, hook) {
+  if (def instanceof VNode) {
+    def = def.data.hook || (def.data.hook = {});
+  }
   var invoker;
   var oldHook = def[hookKey];
 
@@ -2346,6 +2355,7 @@ function updateComponentListeners (
 ) {
   target = vm;
   updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
+  target = undefined;
 }
 
 function eventsMixin (Vue) {
@@ -2401,7 +2411,7 @@ function eventsMixin (Vue) {
     if (!cbs) {
       return vm
     }
-    if (arguments.length === 1) {
+    if (!fn) {
       vm._events[event] = null;
       return vm
     }
@@ -2463,7 +2473,6 @@ function resolveSlots (
   if (!children) {
     return slots
   }
-  var defaultSlot = [];
   for (var i = 0, l = children.length; i < l; i++) {
     var child = children[i];
     var data = child.data;
@@ -2484,12 +2493,14 @@ function resolveSlots (
         slot.push(child);
       }
     } else {
-      defaultSlot.push(child);
+      (slots.default || (slots.default = [])).push(child);
     }
   }
-  // ignore whitespace
-  if (!defaultSlot.every(isWhitespace)) {
-    slots.default = defaultSlot;
+  // ignore slots that contains only whitespace
+  for (var name$1 in slots) {
+    if (slots[name$1].every(isWhitespace)) {
+      delete slots[name$1];
+    }
   }
   return slots
 }
@@ -3647,6 +3658,7 @@ function renderSlot (
   bindObject
 ) {
   var scopedSlotFn = this.$scopedSlots[name];
+  var nodes;
   if (scopedSlotFn) { // scoped slot
     props = props || {};
     if (bindObject) {
@@ -3658,19 +3670,28 @@ function renderSlot (
       }
       props = extend(extend({}, bindObject), props);
     }
-    return scopedSlotFn(props) || fallback
+    nodes = scopedSlotFn(props) || fallback;
   } else {
     var slotNodes = this.$slots[name];
     // warn duplicate slot usage
-    if (slotNodes && "development" !== 'production') {
-      slotNodes._rendered && warn(
-        "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-        "- this will likely cause render errors.",
-        this
-      );
+    if (slotNodes) {
+      if ("development" !== 'production' && slotNodes._rendered) {
+        warn(
+          "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
+          "- this will likely cause render errors.",
+          this
+        );
+      }
       slotNodes._rendered = true;
     }
-    return slotNodes || fallback
+    nodes = slotNodes || fallback;
+  }
+
+  var target = props && props.slot;
+  if (target) {
+    return this.$createElement('template', { slot: target }, nodes)
+  } else {
+    return nodes
   }
 }
 
@@ -3773,8 +3794,8 @@ function renderStatic (
 ) {
   // static trees can be rendered once and cached on the contructor options
   // so every instance shares the same cached trees
-  var renderFns = this.$options.staticRenderFns;
-  var cached = renderFns.cached || (renderFns.cached = []);
+  var options = this.$options;
+  var cached = options.cached || (options.cached = []);
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -3784,7 +3805,7 @@ function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
+  tree = cached[index] = options.staticRenderFns[index].call(this._renderProxy, null, this);
   markStatic(tree, ("__static__" + index), false);
   return tree
 }
@@ -4818,8 +4839,8 @@ var KeepAlive = {
       // check pattern
       var name = getComponentName(componentOptions);
       if (name && (
-        (this.include && !matches(this.include, name)) ||
-        (this.exclude && matches(this.exclude, name))
+        (this.exclude && matches(this.exclude, name)) ||
+        (this.include && !matches(this.include, name))
       )) {
         return vnode
       }
@@ -4915,7 +4936,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.2';
+Vue$3.version = '2.5.3';
 
 /*  */
 
@@ -5896,9 +5917,12 @@ function createPatchFunction (backend) {
           // create an empty node and replace it
           oldVnode = emptyNodeAt(oldVnode);
         }
+
         // replacing existing element
         var oldElm = oldVnode.elm;
         var parentElm$1 = nodeOps.parentNode(oldElm);
+
+        // create new node
         createElm(
           vnode,
           insertedVnodeQueue,
@@ -5909,9 +5933,8 @@ function createPatchFunction (backend) {
           nodeOps.nextSibling(oldElm)
         );
 
+        // update parent placeholder node element, recursively
         if (isDef(vnode.parent)) {
-          // component root element replaced.
-          // update parent placeholder node element, recursively
           var ancestor = vnode.parent;
           var patchable = isPatchable(vnode);
           while (ancestor) {
@@ -5940,6 +5963,7 @@ function createPatchFunction (backend) {
           }
         }
 
+        // destroy old node
         if (isDef(parentElm$1)) {
           removeVnodes(parentElm$1, [oldVnode], 0, 0);
         } else if (isDef(oldVnode.tag)) {
@@ -6005,14 +6029,14 @@ function _update (oldVnode, vnode) {
       }
     };
     if (isCreate) {
-      mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', callInsert);
+      mergeVNodeHook(vnode, 'insert', callInsert);
     } else {
       callInsert();
     }
   }
 
   if (dirsWithPostpatch.length) {
-    mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'postpatch', function () {
+    mergeVNodeHook(vnode, 'postpatch', function () {
       for (var i = 0; i < dirsWithPostpatch.length; i++) {
         callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
       }
@@ -6304,6 +6328,7 @@ function updateDOMListeners (oldVnode, vnode) {
   target$1 = vnode.elm;
   normalizeEvents(on);
   updateListeners(on, oldOn, add$1, remove$2, vnode.context);
+  target$1 = undefined;
 }
 
 var events = {
@@ -6909,7 +6934,7 @@ function enter (vnode, toggleDisplay) {
 
   if (!vnode.data.show) {
     // remove pending leave element on enter by injecting an insert hook
-    mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', function () {
+    mergeVNodeHook(vnode, 'insert', function () {
       var parent = el.parentNode;
       var pendingNode = parent && parent._pending && parent._pending[vnode.key];
       if (pendingNode &&
@@ -7148,10 +7173,17 @@ if (isIE9) {
   });
 }
 
-var model$1 = {
-  inserted: function inserted (el, binding, vnode) {
+var directive = {
+  inserted: function inserted (el, binding, vnode, oldVnode) {
     if (vnode.tag === 'select') {
-      setSelected(el, binding, vnode.context);
+      // #6903
+      if (oldVnode.elm && !oldVnode.elm._vOptions) {
+        mergeVNodeHook(vnode, 'postpatch', function () {
+          directive.componentUpdated(el, binding, vnode);
+        });
+      } else {
+        setSelected(el, binding, vnode.context);
+      }
       el._vOptions = [].map.call(el.options, getValue);
     } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
       el._vModifiers = binding.modifiers;
@@ -7172,6 +7204,7 @@ var model$1 = {
       }
     }
   },
+
   componentUpdated: function componentUpdated (el, binding, vnode) {
     if (vnode.tag === 'select') {
       setSelected(el, binding, vnode.context);
@@ -7330,7 +7363,7 @@ var show = {
 };
 
 var platformDirectives = {
-  model: model$1,
+  model: directive,
   show: show
 };
 
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index 787685ca491..3693fa071b3 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.2
+ * Vue.js v2.5.3
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.Vue=e()}(this,function(){"use strict";function t(t){return void 0===t||null===t}function e(t){return void 0!==t&&null!==t}function n(t){return!0===t}function r(t){return!1===t}function o(t){return"string"==typeof t||"number"==typeof t||"boolean"==typeof t}function i(t){return null!==t&&"object"==typeof t}function a(t){return"[object Object]"===Jn.call(t)}function s(t){return"[object RegExp]"===Jn.call(t)}function c(t){var e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function u(t){return null==t?"":"object"==typeof t?JSON.stringify(t,null,2):String(t)}function l(t){var e=parseFloat(t);return isNaN(e)?t:e}function f(t,e){for(var n=Object.create(null),r=t.split(","),o=0;o<r.length;o++)n[r[o]]=!0;return e?function(t){return n[t.toLowerCase()]}:function(t){return n[t]}}function d(t,e){if(t.length){var n=t.indexOf(e);if(n>-1)return t.splice(n,1)}}function p(t,e){return Qn.call(t,e)}function v(t){var e=Object.create(null);return function(n){return e[n]||(e[n]=t(n))}}function h(t,e){function n(n){var r=arguments.length;return r?r>1?t.apply(e,arguments):t.call(e,n):t.call(e)}return n._length=t.length,n}function m(t,e){e=e||0;for(var n=t.length-e,r=new Array(n);n--;)r[n]=t[n+e];return r}function y(t,e){for(var n in e)t[n]=e[n];return t}function _(t){for(var e={},n=0;n<t.length;n++)t[n]&&y(e,t[n]);return e}function g(t,e,n){}function b(t,e){if(t===e)return!0;var n=i(t),r=i(e);if(!n||!r)return!n&&!r&&String(t)===String(e);try{var o=Array.isArray(t),a=Array.isArray(e);if(o&&a)return t.length===e.length&&t.every(function(t,n){return b(t,e[n])});if(o||a)return!1;var s=Object.keys(t),c=Object.keys(e);return s.length===c.length&&s.every(function(n){return b(t[n],e[n])})}catch(t){return!1}}function C(t,e){for(var n=0;n<t.length;n++)if(b(t[n],e))return n;return-1}function w(t){var e=!1;return 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null==t||!1===t},Oo={svg:"http://www.w3.org/2000/svg",math:"http://www.w3.org/1998/Math/MathML"},So=f("html,body,base,head,link,meta,style,title,address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,s,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,embed,object,param,source,canvas,script,noscript,del,ins,caption,col,colgroup,table,thead,tbody,td,th,tr,button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,output,progress,select,textarea,details,dialog,menu,menuitem,summary,content,element,shadow,template,blockquote,iframe,tfoot"),Eo=f("svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view",!0),jo=function(t){return So(t)||Eo(t)},Io=Object.create(null),To=f("text,number,password,search,email,tel,url"),Do=Object.freeze({createElement:function(t,e){var n=document.createElement(t);return"select"!==t?n:(e.data&&e.data.attrs&&void 0!==e.data.attrs.multiple&&n.setAttribute("multiple","multiple"),n)},createElementNS:function(t,e){return document.createElementNS(Oo[t],e)},createTextNode:function(t){return document.createTextNode(t)},createComment:function(t){return document.createComment(t)},insertBefore:function(t,e,n){t.insertBefore(e,n)},removeChild:function(t,e){t.removeChild(e)},appendChild:function(t,e){t.appendChild(e)},parentNode:function(t){return t.parentNode},nextSibling:function(t){return t.nextSibling},tagName:function(t){return t.tagName},setTextContent:function(t,e){t.textContent=e},setAttribute:function(t,e,n){t.setAttribute(e,n)}}),Lo={create:function(t,e){qe(e)},update:function(t,e){t.data.ref!==e.data.ref&&(qe(t,!0),qe(e))},destroy:function(t){qe(t,!0)}},Po=new 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r}}),Xo={create:yn,update:yn},Yo=v(function(t){return{enterClass:t+"-enter",enterToClass:t+"-enter-to",enterActiveClass:t+"-enter-active",leaveClass:t+"-leave",leaveToClass:t+"-leave-to",leaveActiveClass:t+"-leave-active"}}),ti=dr&&!hr,ei="transition",ni="animation",ri="transition",oi="transitionend",ii="animation",ai="animationend";ti&&(void 0===window.ontransitionend&&void 0!==window.onwebkittransitionend&&(ri="WebkitTransition",oi="webkitTransitionEnd"),void 0===window.onanimationend&&void 0!==window.onwebkitanimationend&&(ii="WebkitAnimation",ai="webkitAnimationEnd"));var si=dr?window.requestAnimationFrame?window.requestAnimationFrame.bind(window):setTimeout:function(t){return t()},ci=/\b(transform|all)(,|$)/,ui=function(r){function i(t){return new Ir(I.tagName(t).toLowerCase(),{},[],void 0,t)}function a(t,e){function n(){0==--n.listeners&&s(t)}return n.listeners=e,n}function s(t){var n=I.parentNode(t);e(n)&&I.removeChild(n,t)}function c(t,r,o,i,a){if(t.isRootInsert=!a,!u(t,r,o,i)){var s=t.data,c=t.children,l=t.tag;e(l)?(t.elm=t.ns?I.createElementNS(t.ns,l):I.createElement(l,t),y(t),v(t,c,r),e(s)&&m(t,r),p(o,t.elm,i)):n(t.isComment)?(t.elm=I.createComment(t.text),p(o,t.elm,i)):(t.elm=I.createTextNode(t.text),p(o,t.elm,i))}}function u(t,r,o,i){var a=t.data;if(e(a)){var s=e(t.componentInstance)&&a.keepAlive;if(e(a=a.hook)&&e(a=a.init)&&a(t,!1,o,i),e(t.componentInstance))return l(t,r),n(s)&&d(t,r,o,i),!0}}function l(t,n){e(t.data.pendingInsert)&&(n.push.apply(n,t.data.pendingInsert),t.data.pendingInsert=null),t.elm=t.componentInstance.$el,h(t)?(m(t,n),y(t)):(qe(t),n.push(t))}function d(t,n,r,o){for(var i,a=t;a.componentInstance;)if(a=a.componentInstance._vnode,e(i=a.data)&&e(i=i.transition)){for(i=0;i<E.activate.length;++i)E.activate[i](Po,a);n.push(a);break}p(r,t.elm,o)}function p(t,n,r){e(t)&&(e(r)?r.parentNode===t&&I.insertBefore(t,n,r):I.appendChild(t,n))}function v(t,e,n){if(Array.isArray(e))for(var r=0;r<e.length;++r)c(e[r],n,t.elm,null,!0);else o(t.text)&&I.appendChild(t.elm,I.createTextNode(t.text))}function h(t){for(;t.componentInstance;)t=t.componentInstance._vnode;return e(t.tag)}function m(t,n){for(var r=0;r<E.create.length;++r)E.create[r](Po,t);e(O=t.data.hook)&&(e(O.create)&&O.create(Po,t),e(O.insert)&&n.push(t))}function y(t){var n;if(e(n=t.functionalScopeId))I.setAttribute(t.elm,n,"");else for(var r=t;r;)e(n=r.context)&&e(n=n.$options._scopeId)&&I.setAttribute(t.elm,n,""),r=r.parent;e(n=Qr)&&n!==t.context&&n!==t.functionalContext&&e(n=n.$options._scopeId)&&I.setAttribute(t.elm,n,"")}function _(t,e,n,r,o,i){for(;r<=o;++r)c(n[r],i,t,e)}function g(t){var n,r,o=t.data;if(e(o))for(e(n=o.hook)&&e(n=n.destroy)&&n(t),n=0;n<E.destroy.length;++n)E.destroy[n](t);if(e(n=t.children))for(r=0;r<t.children.length;++r)g(t.children[r])}function b(t,n,r,o){for(;r<=o;++r){var i=n[r];e(i)&&(e(i.tag)?(C(i),g(i)):s(i.elm))}}function C(t,n){if(e(n)||e(t.data)){var 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s=o.elm=r.elm;if(n(r.isAsyncPlaceholder))e(o.asyncFactory.resolved)?k(r.elm,o,i):o.isAsyncPlaceholder=!0;else if(n(o.isStatic)&&n(r.isStatic)&&o.key===r.key&&(n(o.isCloned)||n(o.isOnce)))o.componentInstance=r.componentInstance;else{var c,u=o.data;e(u)&&e(c=u.hook)&&e(c=c.prepatch)&&c(r,o);var l=r.children,f=o.children;if(e(u)&&h(o)){for(c=0;c<E.update.length;++c)E.update[c](r,o);e(c=u.hook)&&e(c=c.update)&&c(r,o)}t(o.text)?e(l)&&e(f)?l!==f&&w(s,l,f,i,a):e(f)?(e(r.text)&&I.setTextContent(s,""),_(s,null,f,0,f.length-1,i)):e(l)?b(s,l,0,l.length-1):e(r.text)&&I.setTextContent(s,""):r.text!==o.text&&I.setTextContent(s,o.text),e(u)&&e(c=u.hook)&&e(c=c.postpatch)&&c(r,o)}}}function x(t,r,o){if(n(o)&&e(t.parent))t.parent.data.pendingInsert=r;else for(var i=0;i<r.length;++i)r[i].data.hook.insert(r[i])}function k(t,r,o){if(n(r.isComment)&&e(r.asyncFactory))return r.elm=t,r.isAsyncPlaceholder=!0,!0;r.elm=t;var i=r.tag,a=r.data,s=r.children;if(e(a)&&(e(O=a.hook)&&e(O=O.init)&&O(r,!0),e(O=r.componentInstance)))return l(r,o),!0;if(e(i)){if(e(s))if(t.hasChildNodes())if(e(O=a)&&e(O=O.domProps)&&e(O=O.innerHTML)){if(O!==t.innerHTML)return!1}else{for(var c=!0,u=t.firstChild,f=0;f<s.length;f++){if(!u||!k(u,s[f],o)){c=!1;break}u=u.nextSibling}if(!c||u)return!1}else v(r,s,o);if(e(a))for(var d in a)if(!T(d)){m(r,o);break}}else t.data!==r.text&&(t.data=r.text);return!0}var O,S,E={},j=r.modules,I=r.nodeOps;for(O=0;O<No.length;++O)for(E[No[O]]=[],S=0;S<j.length;++S)e(j[S][No[O]])&&E[No[O]].push(j[S][No[O]]);var T=f("attrs,style,class,staticClass,staticStyle,key");return function(r,o,a,s,u,l){if(!t(o)){var f=!1,d=[];if(t(r))f=!0,c(o,d,u,l);else{var p=e(r.nodeType);if(!p&&Ke(r,o))$(r,o,d,s);else{if(p){if(1===r.nodeType&&r.hasAttribute(ir)&&(r.removeAttribute(ir),a=!0),n(a)&&k(r,o,d))return x(o,d,!0),r;r=i(r)}var v=r.elm,m=I.parentNode(v);if(c(o,d,v._leaveCb?null:m,I.nextSibling(v)),e(o.parent))for(var y=o.parent,_=h(o);y;){for(var C=0;C<E.destroy.length;++C)E.destroy[C](y);if(y.elm=o.elm,_){for(var w=0;w<E.create.length;++w)E.create[w](Po,y);var A=y.data.hook.insert;if(A.merged)for(var O=1;O<A.fns.length;O++)A.fns[O]()}else qe(y);y=y.parent}e(m)?b(m,[r],0,0):e(r.tag)&&g(r)}}return x(o,d,f),o.elm}e(r)&&g(r)}}({nodeOps:Do,modules:[Ro,Vo,zo,Wo,Xo,dr?{create:Tn,activate:Tn,remove:function(t,e){!0!==t.data.show?En(t,e):e()}}:{}].concat(Fo)});hr&&document.addEventListener("selectionchange",function(){var t=document.activeElement;t&&t.vmodel&&Fn(t,"input")});var li={inserted:function(t,e,n,r){"select"===n.tag?(r.elm&&!r.elm._vOptions?at(n,"postpatch",function(){li.componentUpdated(t,e,n)}):Dn(t,e,n.context),t._vOptions=[].map.call(t.options,Nn)):("textarea"===n.tag||To(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("change",Un),yr||(t.addEventListener("compositionstart",Mn),t.addEventListener("compositionend",Un)),hr&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){Dn(t,e,n.context);var r=t._vOptions,o=t._vOptions=[].map.call(t.options,Nn);o.some(function(t,e){return!b(t,r[e])})&&(t.multiple?e.value.some(function(t){return Pn(t,o)}):e.value!==e.oldValue&&Pn(e.value,o))&&Fn(t,"change")}}},fi={model:li,show:{bind:function(t,e,n){var r=e.value,o=(n=Rn(n)).data&&n.data.transition,i=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&o?(n.data.show=!0,Sn(n,function(){t.style.display=i})):t.style.display=r?i:"none"},update:function(t,e,n){var r=e.value;r!==e.oldValue&&((n=Rn(n)).data&&n.data.transition?(n.data.show=!0,r?Sn(n,function(){t.style.display=t.__vOriginalDisplay}):En(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none")},unbind:function(t,e,n,r,o){o||(t.style.display=t.__vOriginalDisplay)}}},di={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]},pi={name:"transition",props:di,abstract:!0,render:function(t){var e=this,n=this.$options._renderChildren;if(n&&(n=n.filter(function(t){return t.tag||mt(t)})).length){var r=this.mode,i=n[0];if(zn(this.$vnode))return i;var a=Vn(i);if(!a)return i;if(this._leaving)return Hn(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=Bn(this),u=this._vnode,l=Vn(u);if(a.data.directives&&a.data.directives.some(function(t){return"show"===t.name})&&(a.data.show=!0),l&&l.data&&!Wn(a,l)&&!mt(l)){var f=l.data.transition=y({},c);if("out-in"===r)return this._leaving=!0,at(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),Hn(t,i);if("in-out"===r){if(mt(a))return u;var d,p=function(){d()};at(c,"afterEnter",p),at(c,"enterCancelled",p),at(f,"delayLeave",function(t){d=t})}}return i}}},vi=y({tag:String,moveClass:String},di);delete vi.mode;var hi={Transition:pi,TransitionGroup:{props:vi,render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=Bn(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var d=r[f];d.data.transition=a,d.data.pos=d.elm.getBoundingClientRect(),n[d.key]?u.push(d):l.push(d)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},beforeUpdate:function(){this.__patch__(this._vnode,this.kept,!1,!0),this._vnode=this.kept},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,e)&&(t.forEach(qn),t.forEach(Kn),t.forEach(Gn),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;wn(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(oi,n._moveCb=function t(r){r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(oi,t),n._moveCb=null,An(n,e))})}}))},methods:{hasMove:function(t,e){if(!ti)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){gn(n,t)}),_n(n,e),n.style.display="none",this.$el.appendChild(n);var r=xn(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};return Oe.config.mustUseProp=function(t,e,n){return"value"===n&&bo(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},Oe.config.isReservedTag=jo,Oe.config.isReservedAttr=go,Oe.config.getTagNamespace=function(t){return Eo(t)?"svg":"math"===t?"math":void 0},Oe.config.isUnknownElement=function(t){if(!dr)return!0;if(jo(t))return!1;if(t=t.toLowerCase(),null!=Io[t])return Io[t];var e=document.createElement(t);return t.indexOf("-")>-1?Io[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:Io[t]=/HTMLUnknownElement/.test(e.toString())},y(Oe.options.directives,fi),y(Oe.options.components,hi),Oe.prototype.__patch__=dr?ui:g,Oe.prototype.$mount=function(t,e){return t=t&&dr?We(t):void 0,kt(this,t,e)},Oe.nextTick(function(){cr.devtools&&xr&&xr.emit("init",Oe)},0),Oe});
\ No newline at end of file
diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index 300a12d15ba..fcd36e62be3 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -484,6 +484,7 @@ function createTextVNode (val) {
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
 function cloneVNode (vnode, deep) {
+  var componentOptions = vnode.componentOptions;
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
@@ -491,7 +492,7 @@ function cloneVNode (vnode, deep) {
     vnode.text,
     vnode.elm,
     vnode.context,
-    vnode.componentOptions,
+    componentOptions,
     vnode.asyncFactory
   );
   cloned.ns = vnode.ns;
@@ -499,8 +500,13 @@ function cloneVNode (vnode, deep) {
   cloned.key = vnode.key;
   cloned.isComment = vnode.isComment;
   cloned.isCloned = true;
-  if (deep && vnode.children) {
-    cloned.children = cloneVNodes(vnode.children);
+  if (deep) {
+    if (vnode.children) {
+      cloned.children = cloneVNodes(vnode.children, true);
+    }
+    if (componentOptions && componentOptions.children) {
+      componentOptions.children = cloneVNodes(componentOptions.children, true);
+    }
   }
   return cloned
 }
@@ -538,7 +544,10 @@ function renderDOMProps (node) {
       setText(node, props[key], true);
     } else if (key === 'textContent') {
       setText(node, props[key], false);
+    } else if (key === 'value' && node.tag === 'textarea') {
+      setText(node, props[key], false);
     } else {
+      // $flow-disable-line (WTF?)
       var attr = propsToAttrMap[key] || key.toLowerCase();
       if (isRenderableAttr(attr) &&
         // avoid rendering double-bound props/attrs twice
@@ -1156,7 +1165,7 @@ function set (target, key, val) {
     target.splice(key, 1, val);
     return val
   }
-  if (hasOwn(target, key)) {
+  if (key in target && !(key in Object.prototype)) {
     target[key] = val;
     return val
   }
@@ -1267,7 +1276,7 @@ function mergeDataOrFn (
         typeof parentVal === 'function' ? parentVal.call(this) : parentVal
       )
     }
-  } else if (parentVal || childVal) {
+  } else {
     return function mergedInstanceDataFn () {
       // instance merge
       var instanceData = typeof childVal === 'function'
@@ -1301,7 +1310,7 @@ strats.data = function (
 
       return parentVal
     }
-    return mergeDataOrFn.call(this, parentVal, childVal)
+    return mergeDataOrFn(parentVal, childVal)
   }
 
   return mergeDataOrFn(parentVal, childVal, vm)
@@ -2179,8 +2188,52 @@ function show (node, dir) {
   }
 }
 
+/*  */
+
+// this is only applied for <select v-model> because it is the only edge case
+// that must be done at runtime instead of compile time.
+function model (node, dir) {
+  if (!node.children) { return }
+  var value = dir.value;
+  var isMultiple = node.data.attrs && node.data.attrs.multiple;
+  for (var i = 0, l = node.children.length; i < l; i++) {
+    var option = node.children[i];
+    if (option.tag === 'option') {
+      if (isMultiple) {
+        var selected =
+          Array.isArray(value) &&
+          (looseIndexOf(value, getValue(option)) > -1);
+        if (selected) {
+          setSelected(option);
+        }
+      } else {
+        if (looseEqual(value, getValue(option))) {
+          setSelected(option);
+          return
+        }
+      }
+    }
+  }
+}
+
+function getValue (option) {
+  var data = option.data || {};
+  return (
+    (data.attrs && data.attrs.value) ||
+    (data.domProps && data.domProps.value) ||
+    (option.children && option.children[0] && option.children[0].text)
+  )
+}
+
+function setSelected (option) {
+  var data = option.data || (option.data = {});
+  var attrs = data.attrs || (data.attrs = {});
+  attrs.selected = '';
+}
+
 var directives = {
-  show: show
+  show: show,
+  model: model
 };
 
 /*  */
@@ -3090,10 +3143,11 @@ var decodingMap = {
   '&gt;': '>',
   '&quot;': '"',
   '&amp;': '&',
-  '&#10;': '\n'
+  '&#10;': '\n',
+  '&#9;': '\t'
 };
 var encodedAttr = /&(?:lt|gt|quot|amp);/g;
-var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10);/g;
+var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
 
 // #5992
 var isIgnoreNewlineTag = makeMap('pre,textarea', true);
@@ -3284,12 +3338,12 @@ function parseHTML (html, options) {
         if (args[5] === '') { delete args[5]; }
       }
       var value = args[3] || args[4] || args[5] || '';
+      var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
+        ? options.shouldDecodeNewlinesForHref
+        : options.shouldDecodeNewlines;
       attrs[i] = {
         name: args[1],
-        value: decodeAttr(
-          value,
-          options.shouldDecodeNewlines
-        )
+        value: decodeAttr(value, shouldDecodeNewlines)
       };
     }
 
@@ -3598,6 +3652,7 @@ function parse (
     isUnaryTag: options.isUnaryTag,
     canBeLeftOpenTag: options.canBeLeftOpenTag,
     shouldDecodeNewlines: options.shouldDecodeNewlines,
+    shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
     shouldKeepComment: options.comments,
     start: function start (tag, attrs, unary) {
       // check namespace.
@@ -3956,7 +4011,7 @@ function processSlot (el) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
       // preserve slot as an attribute for native shadow DOM compat
       // only for non-scoped slots.
-      if (!el.slotScope) {
+      if (el.tag !== 'template' && !el.slotScope) {
         addAttr(el, 'slot', slotTarget);
       }
     }
@@ -4045,6 +4100,13 @@ function processAttrs (el) {
         }
       }
       addAttr(el, name, JSON.stringify(value));
+      // #6887 firefox doesn't update muted state if set via attribute
+      // even immediately after element creation
+      if (!el.component &&
+          name === 'muted' &&
+          platformMustUseProp(el.tag, el.attrsMap.type, name)) {
+        addProp(el, name, 'true');
+      }
     }
   }
 }
@@ -4149,6 +4211,8 @@ function preTransformNode (el, options) {
       var typeBinding = getBindingAttr(el, 'type');
       var ifCondition = getAndRemoveAttr(el, 'v-if', true);
       var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
+      var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
+      var elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
       // 1. checkbox
       var branch0 = cloneASTElement(el);
       // process for on the main node
@@ -4179,6 +4243,13 @@ function preTransformNode (el, options) {
         exp: ifCondition,
         block: branch2
       });
+
+      if (hasElse) {
+        branch0.else = true;
+      } else if (elseIfCondition) {
+        branch0.elseif = elseIfCondition;
+      }
+
       return branch0
     }
   }
@@ -4193,14 +4264,14 @@ function addRawAttr (el, name, value) {
   el.attrsList.push({ name: name, value: value });
 }
 
-var model = {
+var model$1 = {
   preTransformNode: preTransformNode
 };
 
 var modules$1 = [
   klass,
   style,
-  model
+  model$1
 ];
 
 /*  */
@@ -4212,7 +4283,7 @@ var warn$2;
 var RANGE_TOKEN = '__r';
 
 
-function model$1 (
+function model$2 (
   el,
   dir,
   _warn
@@ -4377,7 +4448,7 @@ function html (el, dir) {
 }
 
 var directives$1 = {
-  model: model$1,
+  model: model$2,
   text: text,
   html: html
 };
@@ -5011,6 +5082,10 @@ function applyModelTransform (el, state) {
       var dir = el.directives[i];
       if (dir.name === 'model') {
         state.directives.model(el, dir, state.warn);
+        // remove value for textarea as its converted to text
+        if (el.tag === 'textarea' && el.props) {
+          el.props = el.props.filter(function (p) { return p.name !== 'value'; });
+        }
         break
       }
     }
@@ -5158,7 +5233,7 @@ function walk (node, isRoot) {
     if (node.ifConditions) {
       for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
         var block = node.ifConditions[i$1].block;
-        walk(block);
+        walk(block, isRoot);
         check(block);
       }
     }
@@ -5216,7 +5291,8 @@ function isUnOptimizableTree (node) {
   return (
     isBuiltInTag(node.tag) || // built-in (slot, component)
     !isPlatformReservedTag(node.tag) || // custom component
-    !!node.component // "is" component
+    !!node.component || // "is" component
+    isSelectWithModel(node) // <select v-model> requires runtime inspection
   )
 }
 
@@ -5230,6 +5306,17 @@ function hasCustomDirective (node) {
   )
 }
 
+// <select v-model> cannot be optimized because it requires a runtime check
+// to determine proper selected option
+function isSelectWithModel (node) {
+  return (
+    node.type === 1 &&
+    node.tag === 'select' &&
+    node.directives != null &&
+    node.directives.some(function (d) { return d.name === 'model'; })
+  )
+}
+
 /*  */
 
 // The SSR codegen is essentially extending the default codegen to handle
@@ -5403,6 +5490,9 @@ function childrenToSegments (el, state) {
   if ((binding = el.attrsMap['v-text'])) {
     return [{ type: INTERPOLATION, value: ("_s(" + binding + ")") }]
   }
+  if (el.tag === 'textarea' && (binding = el.attrsMap['v-model'])) {
+    return [{ type: INTERPOLATION, value: ("_s(" + binding + ")") }]
+  }
   return el.children
     ? nodesToSegments(el.children, state)
     : []
@@ -6260,6 +6350,7 @@ function updateComponentListeners (
 ) {
   target = vm;
   updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
+  target = undefined;
 }
 
 /*  */
@@ -6275,7 +6366,6 @@ function resolveSlots (
   if (!children) {
     return slots
   }
-  var defaultSlot = [];
   for (var i = 0, l = children.length; i < l; i++) {
     var child = children[i];
     var data = child.data;
@@ -6296,12 +6386,14 @@ function resolveSlots (
         slot.push(child);
       }
     } else {
-      defaultSlot.push(child);
+      (slots.default || (slots.default = [])).push(child);
     }
   }
-  // ignore whitespace
-  if (!defaultSlot.every(isWhitespace)) {
-    slots.default = defaultSlot;
+  // ignore slots that contains only whitespace
+  for (var name$1 in slots) {
+    if (slots[name$1].every(isWhitespace)) {
+      delete slots[name$1];
+    }
   }
   return slots
 }
@@ -7010,6 +7102,7 @@ function renderSlot (
   bindObject
 ) {
   var scopedSlotFn = this.$scopedSlots[name];
+  var nodes;
   if (scopedSlotFn) { // scoped slot
     props = props || {};
     if (bindObject) {
@@ -7021,19 +7114,28 @@ function renderSlot (
       }
       props = extend(extend({}, bindObject), props);
     }
-    return scopedSlotFn(props) || fallback
+    nodes = scopedSlotFn(props) || fallback;
   } else {
     var slotNodes = this.$slots[name];
     // warn duplicate slot usage
-    if (slotNodes && "development" !== 'production') {
-      slotNodes._rendered && warn(
-        "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-        "- this will likely cause render errors.",
-        this
-      );
+    if (slotNodes) {
+      if ("development" !== 'production' && slotNodes._rendered) {
+        warn(
+          "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
+          "- this will likely cause render errors.",
+          this
+        );
+      }
       slotNodes._rendered = true;
     }
-    return slotNodes || fallback
+    nodes = slotNodes || fallback;
+  }
+
+  var target = props && props.slot;
+  if (target) {
+    return this.$createElement('template', { slot: target }, nodes)
+  } else {
+    return nodes
   }
 }
 
@@ -7136,8 +7238,8 @@ function renderStatic (
 ) {
   // static trees can be rendered once and cached on the contructor options
   // so every instance shares the same cached trees
-  var renderFns = this.$options.staticRenderFns;
-  var cached = renderFns.cached || (renderFns.cached = []);
+  var options = this.$options;
+  var cached = options.cached || (options.cached = []);
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -7147,7 +7249,7 @@ function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
+  tree = cached[index] = options.staticRenderFns[index].call(this._renderProxy, null, this);
   markStatic(tree, ("__static__" + index), false);
   return tree
 }
diff --git a/packages/vue-server-renderer/build.js b/packages/vue-server-renderer/build.js
index c1e672aa7a8..dbbf5154af2 100644
--- a/packages/vue-server-renderer/build.js
+++ b/packages/vue-server-renderer/build.js
@@ -486,6 +486,7 @@ function createTextVNode (val) {
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
 function cloneVNode (vnode, deep) {
+  var componentOptions = vnode.componentOptions;
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
@@ -493,7 +494,7 @@ function cloneVNode (vnode, deep) {
     vnode.text,
     vnode.elm,
     vnode.context,
-    vnode.componentOptions,
+    componentOptions,
     vnode.asyncFactory
   );
   cloned.ns = vnode.ns;
@@ -501,8 +502,13 @@ function cloneVNode (vnode, deep) {
   cloned.key = vnode.key;
   cloned.isComment = vnode.isComment;
   cloned.isCloned = true;
-  if (deep && vnode.children) {
-    cloned.children = cloneVNodes(vnode.children);
+  if (deep) {
+    if (vnode.children) {
+      cloned.children = cloneVNodes(vnode.children, true);
+    }
+    if (componentOptions && componentOptions.children) {
+      componentOptions.children = cloneVNodes(componentOptions.children, true);
+    }
   }
   return cloned
 }
@@ -540,7 +546,10 @@ function renderDOMProps (node) {
       setText(node, props[key], true);
     } else if (key === 'textContent') {
       setText(node, props[key], false);
+    } else if (key === 'value' && node.tag === 'textarea') {
+      setText(node, props[key], false);
     } else {
+      // $flow-disable-line (WTF?)
       var attr = propsToAttrMap[key] || key.toLowerCase();
       if (isRenderableAttr(attr) &&
         // avoid rendering double-bound props/attrs twice
@@ -1158,7 +1167,7 @@ function set (target, key, val) {
     target.splice(key, 1, val);
     return val
   }
-  if (hasOwn(target, key)) {
+  if (key in target && !(key in Object.prototype)) {
     target[key] = val;
     return val
   }
@@ -1269,7 +1278,7 @@ function mergeDataOrFn (
         typeof parentVal === 'function' ? parentVal.call(this) : parentVal
       )
     }
-  } else if (parentVal || childVal) {
+  } else {
     return function mergedInstanceDataFn () {
       // instance merge
       var instanceData = typeof childVal === 'function'
@@ -1303,7 +1312,7 @@ strats.data = function (
 
       return parentVal
     }
-    return mergeDataOrFn.call(this, parentVal, childVal)
+    return mergeDataOrFn(parentVal, childVal)
   }
 
   return mergeDataOrFn(parentVal, childVal, vm)
@@ -2181,8 +2190,52 @@ function show (node, dir) {
   }
 }
 
+/*  */
+
+// this is only applied for <select v-model> because it is the only edge case
+// that must be done at runtime instead of compile time.
+function model (node, dir) {
+  if (!node.children) { return }
+  var value = dir.value;
+  var isMultiple = node.data.attrs && node.data.attrs.multiple;
+  for (var i = 0, l = node.children.length; i < l; i++) {
+    var option = node.children[i];
+    if (option.tag === 'option') {
+      if (isMultiple) {
+        var selected =
+          Array.isArray(value) &&
+          (looseIndexOf(value, getValue(option)) > -1);
+        if (selected) {
+          setSelected(option);
+        }
+      } else {
+        if (looseEqual(value, getValue(option))) {
+          setSelected(option);
+          return
+        }
+      }
+    }
+  }
+}
+
+function getValue (option) {
+  var data = option.data || {};
+  return (
+    (data.attrs && data.attrs.value) ||
+    (data.domProps && data.domProps.value) ||
+    (option.children && option.children[0] && option.children[0].text)
+  )
+}
+
+function setSelected (option) {
+  var data = option.data || (option.data = {});
+  var attrs = data.attrs || (data.attrs = {});
+  attrs.selected = '';
+}
+
 var baseDirectives = {
-  show: show
+  show: show,
+  model: model
 };
 
 /*  */
@@ -2829,10 +2882,11 @@ var decodingMap = {
   '&gt;': '>',
   '&quot;': '"',
   '&amp;': '&',
-  '&#10;': '\n'
+  '&#10;': '\n',
+  '&#9;': '\t'
 };
 var encodedAttr = /&(?:lt|gt|quot|amp);/g;
-var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10);/g;
+var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
 
 // #5992
 var isIgnoreNewlineTag = makeMap('pre,textarea', true);
@@ -3023,12 +3077,12 @@ function parseHTML (html, options) {
         if (args[5] === '') { delete args[5]; }
       }
       var value = args[3] || args[4] || args[5] || '';
+      var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
+        ? options.shouldDecodeNewlinesForHref
+        : options.shouldDecodeNewlines;
       attrs[i] = {
         name: args[1],
-        value: decodeAttr(
-          value,
-          options.shouldDecodeNewlines
-        )
+        value: decodeAttr(value, shouldDecodeNewlines)
       };
     }
 
@@ -3337,6 +3391,7 @@ function parse (
     isUnaryTag: options.isUnaryTag,
     canBeLeftOpenTag: options.canBeLeftOpenTag,
     shouldDecodeNewlines: options.shouldDecodeNewlines,
+    shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
     shouldKeepComment: options.comments,
     start: function start (tag, attrs, unary) {
       // check namespace.
@@ -3695,7 +3750,7 @@ function processSlot (el) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
       // preserve slot as an attribute for native shadow DOM compat
       // only for non-scoped slots.
-      if (!el.slotScope) {
+      if (el.tag !== 'template' && !el.slotScope) {
         addAttr(el, 'slot', slotTarget);
       }
     }
@@ -3784,6 +3839,13 @@ function processAttrs (el) {
         }
       }
       addAttr(el, name, JSON.stringify(value));
+      // #6887 firefox doesn't update muted state if set via attribute
+      // even immediately after element creation
+      if (!el.component &&
+          name === 'muted' &&
+          platformMustUseProp(el.tag, el.attrsMap.type, name)) {
+        addProp(el, name, 'true');
+      }
     }
   }
 }
@@ -3888,6 +3950,8 @@ function preTransformNode (el, options) {
       var typeBinding = getBindingAttr(el, 'type');
       var ifCondition = getAndRemoveAttr(el, 'v-if', true);
       var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
+      var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
+      var elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
       // 1. checkbox
       var branch0 = cloneASTElement(el);
       // process for on the main node
@@ -3918,6 +3982,13 @@ function preTransformNode (el, options) {
         exp: ifCondition,
         block: branch2
       });
+
+      if (hasElse) {
+        branch0.else = true;
+      } else if (elseIfCondition) {
+        branch0.elseif = elseIfCondition;
+      }
+
       return branch0
     }
   }
@@ -3932,14 +4003,14 @@ function addRawAttr (el, name, value) {
   el.attrsList.push({ name: name, value: value });
 }
 
-var model = {
+var model$1 = {
   preTransformNode: preTransformNode
 };
 
 var modules$1 = [
   klass,
   style,
-  model
+  model$1
 ];
 
 /*  */
@@ -3951,7 +4022,7 @@ var warn$2;
 var RANGE_TOKEN = '__r';
 
 
-function model$1 (
+function model$2 (
   el,
   dir,
   _warn
@@ -4116,7 +4187,7 @@ function html (el, dir) {
 }
 
 var directives = {
-  model: model$1,
+  model: model$2,
   text: text,
   html: html
 };
@@ -4750,6 +4821,10 @@ function applyModelTransform (el, state) {
       var dir = el.directives[i];
       if (dir.name === 'model') {
         state.directives.model(el, dir, state.warn);
+        // remove value for textarea as its converted to text
+        if (el.tag === 'textarea' && el.props) {
+          el.props = el.props.filter(function (p) { return p.name !== 'value'; });
+        }
         break
       }
     }
@@ -4897,7 +4972,7 @@ function walk (node, isRoot) {
     if (node.ifConditions) {
       for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
         var block = node.ifConditions[i$1].block;
-        walk(block);
+        walk(block, isRoot);
         check(block);
       }
     }
@@ -4955,7 +5030,8 @@ function isUnOptimizableTree (node) {
   return (
     isBuiltInTag(node.tag) || // built-in (slot, component)
     !isPlatformReservedTag(node.tag) || // custom component
-    !!node.component // "is" component
+    !!node.component || // "is" component
+    isSelectWithModel(node) // <select v-model> requires runtime inspection
   )
 }
 
@@ -4969,6 +5045,17 @@ function hasCustomDirective (node) {
   )
 }
 
+// <select v-model> cannot be optimized because it requires a runtime check
+// to determine proper selected option
+function isSelectWithModel (node) {
+  return (
+    node.type === 1 &&
+    node.tag === 'select' &&
+    node.directives != null &&
+    node.directives.some(function (d) { return d.name === 'model'; })
+  )
+}
+
 /*  */
 
 // The SSR codegen is essentially extending the default codegen to handle
@@ -5142,6 +5229,9 @@ function childrenToSegments (el, state) {
   if ((binding = el.attrsMap['v-text'])) {
     return [{ type: INTERPOLATION, value: ("_s(" + binding + ")") }]
   }
+  if (el.tag === 'textarea' && (binding = el.attrsMap['v-model'])) {
+    return [{ type: INTERPOLATION, value: ("_s(" + binding + ")") }]
+  }
   return el.children
     ? nodesToSegments(el.children, state)
     : []
@@ -5997,6 +6087,7 @@ function updateComponentListeners (
 ) {
   target = vm;
   updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
+  target = undefined;
 }
 
 /*  */
@@ -6012,7 +6103,6 @@ function resolveSlots (
   if (!children) {
     return slots
   }
-  var defaultSlot = [];
   for (var i = 0, l = children.length; i < l; i++) {
     var child = children[i];
     var data = child.data;
@@ -6033,12 +6123,14 @@ function resolveSlots (
         slot.push(child);
       }
     } else {
-      defaultSlot.push(child);
+      (slots.default || (slots.default = [])).push(child);
     }
   }
-  // ignore whitespace
-  if (!defaultSlot.every(isWhitespace)) {
-    slots.default = defaultSlot;
+  // ignore slots that contains only whitespace
+  for (var name$1 in slots) {
+    if (slots[name$1].every(isWhitespace)) {
+      delete slots[name$1];
+    }
   }
   return slots
 }
@@ -6741,6 +6833,7 @@ function renderSlot (
   bindObject
 ) {
   var scopedSlotFn = this.$scopedSlots[name];
+  var nodes;
   if (scopedSlotFn) { // scoped slot
     props = props || {};
     if (bindObject) {
@@ -6752,19 +6845,28 @@ function renderSlot (
       }
       props = extend(extend({}, bindObject), props);
     }
-    return scopedSlotFn(props) || fallback
+    nodes = scopedSlotFn(props) || fallback;
   } else {
     var slotNodes = this.$slots[name];
     // warn duplicate slot usage
-    if (slotNodes && process.env.NODE_ENV !== 'production') {
-      slotNodes._rendered && warn(
-        "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-        "- this will likely cause render errors.",
-        this
-      );
+    if (slotNodes) {
+      if (process.env.NODE_ENV !== 'production' && slotNodes._rendered) {
+        warn(
+          "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
+          "- this will likely cause render errors.",
+          this
+        );
+      }
       slotNodes._rendered = true;
     }
-    return slotNodes || fallback
+    nodes = slotNodes || fallback;
+  }
+
+  var target = props && props.slot;
+  if (target) {
+    return this.$createElement('template', { slot: target }, nodes)
+  } else {
+    return nodes
   }
 }
 
@@ -6867,8 +6969,8 @@ function renderStatic (
 ) {
   // static trees can be rendered once and cached on the contructor options
   // so every instance shares the same cached trees
-  var renderFns = this.$options.staticRenderFns;
-  var cached = renderFns.cached || (renderFns.cached = []);
+  var options = this.$options;
+  var cached = options.cached || (options.cached = []);
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -6878,7 +6980,7 @@ function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
+  tree = cached[index] = options.staticRenderFns[index].call(this._renderProxy, null, this);
   markStatic(tree, ("__static__" + index), false);
   return tree
 }
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index b22297fef42..38309a24fd0 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.5.2",
+  "version": "2.5.3",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index 7b3a8f2c448..5a049cf353f 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -320,10 +320,11 @@ var decodingMap = {
   '&gt;': '>',
   '&quot;': '"',
   '&amp;': '&',
-  '&#10;': '\n'
+  '&#10;': '\n',
+  '&#9;': '\t'
 };
 var encodedAttr = /&(?:lt|gt|quot|amp);/g;
-var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10);/g;
+var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
 
 // #5992
 var isIgnoreNewlineTag = makeMap('pre,textarea', true);
@@ -514,12 +515,12 @@ function parseHTML (html, options) {
         if (args[5] === '') { delete args[5]; }
       }
       var value = args[3] || args[4] || args[5] || '';
+      var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
+        ? options.shouldDecodeNewlinesForHref
+        : options.shouldDecodeNewlines;
       attrs[i] = {
         name: args[1],
-        value: decodeAttr(
-          value,
-          options.shouldDecodeNewlines
-        )
+        value: decodeAttr(value, shouldDecodeNewlines)
       };
     }
 
@@ -1328,7 +1329,7 @@ function set (target, key, val) {
     target.splice(key, 1, val);
     return val
   }
-  if (hasOwn(target, key)) {
+  if (key in target && !(key in Object.prototype)) {
     target[key] = val;
     return val
   }
@@ -1439,7 +1440,7 @@ function mergeDataOrFn (
         typeof parentVal === 'function' ? parentVal.call(this) : parentVal
       )
     }
-  } else if (parentVal || childVal) {
+  } else {
     return function mergedInstanceDataFn () {
       // instance merge
       var instanceData = typeof childVal === 'function'
@@ -1473,7 +1474,7 @@ strats.data = function (
 
       return parentVal
     }
-    return mergeDataOrFn.call(this, parentVal, childVal)
+    return mergeDataOrFn(parentVal, childVal)
   }
 
   return mergeDataOrFn(parentVal, childVal, vm)
@@ -2721,6 +2722,7 @@ function parse (
     isUnaryTag: options.isUnaryTag,
     canBeLeftOpenTag: options.canBeLeftOpenTag,
     shouldDecodeNewlines: options.shouldDecodeNewlines,
+    shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
     shouldKeepComment: options.comments,
     start: function start (tag, attrs, unary) {
       // check namespace.
@@ -3079,7 +3081,7 @@ function processSlot (el) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
       // preserve slot as an attribute for native shadow DOM compat
       // only for non-scoped slots.
-      if (!el.slotScope) {
+      if (el.tag !== 'template' && !el.slotScope) {
         addAttr(el, 'slot', slotTarget);
       }
     }
@@ -3168,6 +3170,13 @@ function processAttrs (el) {
         }
       }
       addAttr(el, name, JSON.stringify(value));
+      // #6887 firefox doesn't update muted state if set via attribute
+      // even immediately after element creation
+      if (!el.component &&
+          name === 'muted' &&
+          platformMustUseProp(el.tag, el.attrsMap.type, name)) {
+        addProp(el, name, 'true');
+      }
     }
   }
 }
@@ -3272,6 +3281,8 @@ function preTransformNode (el, options) {
       var typeBinding = getBindingAttr(el, 'type');
       var ifCondition = getAndRemoveAttr(el, 'v-if', true);
       var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
+      var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
+      var elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
       // 1. checkbox
       var branch0 = cloneASTElement(el);
       // process for on the main node
@@ -3302,6 +3313,13 @@ function preTransformNode (el, options) {
         exp: ifCondition,
         block: branch2
       });
+
+      if (hasElse) {
+        branch0.else = true;
+      } else if (elseIfCondition) {
+        branch0.elseif = elseIfCondition;
+      }
+
       return branch0
     }
   }
@@ -4584,6 +4602,10 @@ function applyModelTransform (el, state) {
       var dir = el.directives[i];
       if (dir.name === 'model') {
         state.directives.model(el, dir, state.warn);
+        // remove value for textarea as its converted to text
+        if (el.tag === 'textarea' && el.props) {
+          el.props = el.props.filter(function (p) { return p.name !== 'value'; });
+        }
         break
       }
     }
@@ -4731,7 +4753,7 @@ function walk (node, isRoot) {
     if (node.ifConditions) {
       for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
         var block = node.ifConditions[i$1].block;
-        walk(block);
+        walk(block, isRoot);
         check(block);
       }
     }
@@ -4789,7 +4811,8 @@ function isUnOptimizableTree (node) {
   return (
     isBuiltInTag(node.tag) || // built-in (slot, component)
     !isPlatformReservedTag$1(node.tag) || // custom component
-    !!node.component // "is" component
+    !!node.component || // "is" component
+    isSelectWithModel(node) // <select v-model> requires runtime inspection
   )
 }
 
@@ -4803,6 +4826,17 @@ function hasCustomDirective (node) {
   )
 }
 
+// <select v-model> cannot be optimized because it requires a runtime check
+// to determine proper selected option
+function isSelectWithModel (node) {
+  return (
+    node.type === 1 &&
+    node.tag === 'select' &&
+    node.directives != null &&
+    node.directives.some(function (d) { return d.name === 'model'; })
+  )
+}
+
 /*  */
 
 // The SSR codegen is essentially extending the default codegen to handle
@@ -4976,6 +5010,9 @@ function childrenToSegments (el, state) {
   if ((binding = el.attrsMap['v-text'])) {
     return [{ type: INTERPOLATION, value: ("_s(" + binding + ")") }]
   }
+  if (el.tag === 'textarea' && (binding = el.attrsMap['v-model'])) {
+    return [{ type: INTERPOLATION, value: ("_s(" + binding + ")") }]
+  }
   return el.children
     ? nodesToSegments(el.children, state)
     : []
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index 78c3546dfc3..93eb6db5600 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -277,10 +277,11 @@ var decodingMap = {
   '&gt;': '>',
   '&quot;': '"',
   '&amp;': '&',
-  '&#10;': '\n'
+  '&#10;': '\n',
+  '&#9;': '\t'
 };
 var encodedAttr = /&(?:lt|gt|quot|amp);/g;
-var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10);/g;
+var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
 
 // #5992
 var isIgnoreNewlineTag = makeMap('pre,textarea', true);
@@ -471,12 +472,12 @@ function parseHTML (html, options) {
         if (args[5] === '') { delete args[5]; }
       }
       var value = args[3] || args[4] || args[5] || '';
+      var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
+        ? options.shouldDecodeNewlinesForHref
+        : options.shouldDecodeNewlines;
       attrs[i] = {
         name: args[1],
-        value: decodeAttr(
-          value,
-          options.shouldDecodeNewlines
-        )
+        value: decodeAttr(value, shouldDecodeNewlines)
       };
     }
 
@@ -1285,7 +1286,7 @@ function set (target, key, val) {
     target.splice(key, 1, val);
     return val
   }
-  if (hasOwn(target, key)) {
+  if (key in target && !(key in Object.prototype)) {
     target[key] = val;
     return val
   }
@@ -1396,7 +1397,7 @@ function mergeDataOrFn (
         typeof parentVal === 'function' ? parentVal.call(this) : parentVal
       )
     }
-  } else if (parentVal || childVal) {
+  } else {
     return function mergedInstanceDataFn () {
       // instance merge
       var instanceData = typeof childVal === 'function'
@@ -1430,7 +1431,7 @@ strats.data = function (
 
       return parentVal
     }
-    return mergeDataOrFn.call(this, parentVal, childVal)
+    return mergeDataOrFn(parentVal, childVal)
   }
 
   return mergeDataOrFn(parentVal, childVal, vm)
@@ -2323,6 +2324,7 @@ function parse (
     isUnaryTag: options.isUnaryTag,
     canBeLeftOpenTag: options.canBeLeftOpenTag,
     shouldDecodeNewlines: options.shouldDecodeNewlines,
+    shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
     shouldKeepComment: options.comments,
     start: function start (tag, attrs, unary) {
       // check namespace.
@@ -2681,7 +2683,7 @@ function processSlot (el) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
       // preserve slot as an attribute for native shadow DOM compat
       // only for non-scoped slots.
-      if (!el.slotScope) {
+      if (el.tag !== 'template' && !el.slotScope) {
         addAttr(el, 'slot', slotTarget);
       }
     }
@@ -2770,6 +2772,13 @@ function processAttrs (el) {
         }
       }
       addAttr(el, name, JSON.stringify(value));
+      // #6887 firefox doesn't update muted state if set via attribute
+      // even immediately after element creation
+      if (!el.component &&
+          name === 'muted' &&
+          platformMustUseProp(el.tag, el.attrsMap.type, name)) {
+        addProp(el, name, 'true');
+      }
     }
   }
 }
@@ -2874,6 +2883,8 @@ function preTransformNode (el, options) {
       var typeBinding = getBindingAttr(el, 'type');
       var ifCondition = getAndRemoveAttr(el, 'v-if', true);
       var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
+      var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
+      var elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
       // 1. checkbox
       var branch0 = cloneASTElement(el);
       // process for on the main node
@@ -2904,6 +2915,13 @@ function preTransformNode (el, options) {
         exp: ifCondition,
         block: branch2
       });
+
+      if (hasElse) {
+        branch0.else = true;
+      } else if (elseIfCondition) {
+        branch0.elseif = elseIfCondition;
+      }
+
       return branch0
     }
   }
@@ -4186,6 +4204,10 @@ function applyModelTransform (el, state) {
       var dir = el.directives[i];
       if (dir.name === 'model') {
         state.directives.model(el, dir, state.warn);
+        // remove value for textarea as its converted to text
+        if (el.tag === 'textarea' && el.props) {
+          el.props = el.props.filter(function (p) { return p.name !== 'value'; });
+        }
         break
       }
     }
@@ -4333,7 +4355,7 @@ function walk (node, isRoot) {
     if (node.ifConditions) {
       for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
         var block = node.ifConditions[i$1].block;
-        walk(block);
+        walk(block, isRoot);
         check(block);
       }
     }
@@ -4391,7 +4413,8 @@ function isUnOptimizableTree (node) {
   return (
     isBuiltInTag(node.tag) || // built-in (slot, component)
     !isPlatformReservedTag$1(node.tag) || // custom component
-    !!node.component // "is" component
+    !!node.component || // "is" component
+    isSelectWithModel(node) // <select v-model> requires runtime inspection
   )
 }
 
@@ -4405,6 +4428,17 @@ function hasCustomDirective (node) {
   )
 }
 
+// <select v-model> cannot be optimized because it requires a runtime check
+// to determine proper selected option
+function isSelectWithModel (node) {
+  return (
+    node.type === 1 &&
+    node.tag === 'select' &&
+    node.directives != null &&
+    node.directives.some(function (d) { return d.name === 'model'; })
+  )
+}
+
 /*  */
 
 // The SSR codegen is essentially extending the default codegen to handle
@@ -4578,6 +4612,9 @@ function childrenToSegments (el, state) {
   if ((binding = el.attrsMap['v-text'])) {
     return [{ type: INTERPOLATION, value: ("_s(" + binding + ")") }]
   }
+  if (el.tag === 'textarea' && (binding = el.attrsMap['v-model'])) {
+    return [{ type: INTERPOLATION, value: ("_s(" + binding + ")") }]
+  }
   return el.children
     ? nodesToSegments(el.children, state)
     : []
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index 200638851ed..17cf9d135f6 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.5.2",
+  "version": "2.5.3",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",