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fix(patch): Do not consider nodes with different scope ids the same (fix #10416) #12938

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fix(patch): Do not consider nodes with different scope ids the same (fix #10416) #12938

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17 changes: 16 additions & 1 deletion src/core/vdom/patch.js
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Expand Up @@ -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)
Expand All @@ -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 = {}
Expand Down