From 834929bd98225a76c237978de93af8be6f0c4ed9 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 15 Sep 2017 10:16:39 -0400
Subject: [PATCH] fix(core): avoid observing VNodes

fix #6610
---
 src/core/observer/index.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/core/observer/index.js b/src/core/observer/index.js
index 7fc8a633cda..11de2d89f79 100644
--- a/src/core/observer/index.js
+++ b/src/core/observer/index.js
@@ -1,6 +1,7 @@
 /* @flow */
 
 import Dep from './dep'
+import VNode from '../vdom/vnode'
 import { arrayMethods } from './array'
 import {
   def,
@@ -104,7 +105,7 @@ function copyAugment (target: Object, src: Object, keys: Array<string>) {
  * or the existing observer if the value already has one.
  */
 export function observe (value: any, asRootData: ?boolean): Observer | void {
-  if (!isObject(value)) {
+  if (!isObject(value) || value instanceof VNode) {
     return
   }
   let ob: Observer | void