切换组件报错，可能是transition+keep-alive的问题

[npmrun]

Version

3.2.27 及以上

Reproduction link

sfc.vuejs.org/

Steps to reproduce

1. 输入11
2. 点击切换
3. 输入 22
4. 点击前往CC
   然后就报错了，怎么点都报错

What is expected?

正常切换组件

What is actually happening?

切换报错

[JianJroh]

Version

3.2.27 及以上

Reproduction link

sfc.vuejs.org/

Steps to reproduce

1. 输入11
2. 点击切换
3. 输入 22
4. 点击前往CC
   然后就报错了，怎么点都报错

What is expected?

正常切换组件

What is actually happening?

切换报错

function toggleCC(){
    t.value = 2;
+  nextTick(() => {
     Comp.value=CC  // 挂载到Parent 行为 
+  });
}

t.value = 2 卸载Parent dom行为 与 Comp.value=CC 挂载到Parent dom 行为，在同一队列下执行是矛盾的，如报错 Cannot read properties of null (reading 'parentNode')所说

[npmrun]

是的，加了nextTick不报错了。如果是去掉transition也不报错

[edison1105]

will be fixed by #7290
see https://deploy-preview-7290--vue-sfc-playground.netlify.app/#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