From 2026dd78901d6a12e8e9830dbae07fcfa215d5a6 Mon Sep 17 00:00:00 2001
From: NoahKa0 <noahkastelein0@gmail.com>
Date: Wed, 18 Jan 2023 22:13:24 +0100
Subject: [PATCH] fix(patch): Do not consider nodes with different scope ids
 the same

When patching a node the scope id might change. When it does the flow should be followed for
updating non-same elements to make sure it is updated correctly in the DOM.

fix #10416
---
 src/core/vdom/patch.js | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/src/core/vdom/patch.js b/src/core/vdom/patch.js
index bff48f44bea..6d7c54aab3a 100644
--- a/src/core/vdom/patch.js
+++ b/src/core/vdom/patch.js
@@ -40,7 +40,8 @@ function sameVnode (a, b) {
         a.tag === b.tag &&
         a.isComment === b.isComment &&
         isDef(a.data) === isDef(b.data) &&
-        sameInputType(a, b)
+        sameInputType(a, b) &&
+        findScopeId(a) === findScopeId(b)
       ) || (
         isTrue(a.isAsyncPlaceholder) &&
         isUndef(b.asyncFactory.error)
@@ -67,6 +68,20 @@ function createKeyToOldIdx (children, beginIdx, endIdx) {
   return map
 }
 
+function findScopeId (node) {
+  if (isDef(node.fnScopeId)) {
+    return node.fnScopeId
+  }
+
+  let ancestor = node
+  while (ancestor) {
+    if (isDef(ancestor.context) && isDef(ancestor.context.$options._scopeId)) {
+      return ancestor.context.$options._scopeId
+    }
+    ancestor = ancestor.parent
+  }
+}
+
 export function createPatchFunction (backend) {
   let i, j
   const cbs = {}