bug#52491: 28.0.90; Regression in window deletion with minibuffer

[Juri Linkov]

>> I get nil too, but I don't believe this value.
>> Maybe because of some strange window interactions,
>> the displayed value is wrong.  When I tried to print
>> the real value with 'message' in the *Messages* value,
>> it was the same as in 27.2.90.
>
> Well then ...

It's very strange that evaluating in the *Completions* buffer with

  M-: (selected-window)

shows that the selected window is the minibuffer window.

Do you have an idea what is going on?

> ... the attached patch should cure it (I suppose this got broken in
> commit d0c7d8bc22a935f2a79747a96b4043f0b449a212 but didn't check).

Thanks, then this patch should be pushed to master,
and another shorter patch to the release branch?