Router-view plus key attribute causes keepAlive to fail

[anncwb]

Version

4.0.0-rc.1

Reproduction link

https://codesandbox.io/s/vue-router-next-beforerouteupdate-forked-od2y4?file=/index.html

Steps to reproduce

Delete :key="$route.path" and it works

I saw the (#444) problem, and added: key="$route.path". But it will cause keepAlive to fail. This is very important to me, is there any way to deal with it

What is expected?

When router-view is keyed, keepalive is used normally

What is actually happening?

When router-view is keyed, keepalive you can use it normally

[posva]

What does rt mean?

[anncwb]

Sorry I wrote it habitually。It has been modified

[posva]

You need to put the key on the component if you are using v slot

[anncwb]

@posva I modified the example because I forgot to add the transition tag. It can work before transition without adding mode="out-in". It won't work after adding

[anncwb]

When I switch routes, the page does not render. I mentioned this question in vue-next before, but I am not sure why this problem occurred

[anncwb]

can you help me?

[posva]

There is no includes prop in keep alive, but I don't understand why it breaks with it