two rapid sequential transitions display wrong

[719media]

Vue version

3.2.35

Link to minimal reproduction

https://codesandbox.io/s/vue-3-fade-in-transition-forked-rgechd

Steps to reproduce

When you click the button, you can see that both "A" and "B" show. The catalyst to this behavior is the "setTimeout" in the file. Without it, things function normally.

What is expected?

Only "B" should show

What is actually happening?

Both "A" and "B" continue to show

System Info

Seems that this behavior started on 3.2.34, doesn't happen on 3.2.33

Any additional comments?

No response

[zhmushan]

related: 59cf295