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fix: clone vnode before mutating flags

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This commit is contained in:
Evan You 2018-09-27 10:23:31 -04:00
parent 86d95cf33b
commit 01a0fcb876
1 changed files with 6 additions and 1 deletions
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7
packages/core/src/optional/keepAlive.ts
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@ -1,5 +1,5 @@
import { Component, ComponentClass, MountedComponent } from '../component' import { Component, ComponentClass, MountedComponent } from '../component'
import { VNode, Slots } from '../vdom' import { VNode, Slots, cloneVNode } from '../vdom'
import { VNodeFlags } from '../flags' import { VNodeFlags } from '../flags'
type MatchPattern = string | RegExp | string[] | RegExp[] type MatchPattern = string | RegExp | string[] | RegExp[]
@ -81,6 +81,11 @@ export class KeepAlive extends Component<{}, KeepAliveProps> {
const { cache, keys } = this const { cache, keys } = this
const key = vnode.key == null ? comp : vnode.key const key = vnode.key == null ? comp : vnode.key
const cached = cache.get(key) const cached = cache.get(key)
// clone vnode if it's reused because we are going to mutate its flags
if (vnode.el) {
vnode = cloneVNode(vnode)
}
cache.set(key, vnode) cache.set(key, vnode)
if (cached) { if (cached) {