bug#45792: 28.0.50; regression in commit c7c154bb, minibuffer is not closed after opening a file

[Platon Pronko]

Hi!

Tested the commit, the issue is gone - both with and without (not 
(minibufferp)).

However I noticed that (minibufferp) can return nil when it is called on 
*Minibuf-1* (I noticed this when suddenly dvorak was enabled in minibuffer even 
though (not (minibufferp)) guard was still in the code).

Here's some debug code I used to check minibufferp return:

(define-minor-mode dvorak-minor-mode "Use english-dvorak input method." 
:lighter nil
  (message (format "%s %s" (buffer-name (current-buffer)) (minibufferp)))
  (if (and dvorak-minor-mode (not (minibufferp)))
    (activate-input-method "english-dvorak")))
(define-global-minor-mode global-dvorak-mode dvorak-minor-mode 
dvorak-minor-mode)
(global-dvorak-mode t)

And here's sample output in the *Message* buffer:

For information about GNU Emacs and the GNU system, type C-h C-a.
*scratch* nil
Loading quail/latin-post...done
 *Minibuf-0* t
*Messages* nil
 *Echo Area 0* nil
 *Echo Area 1* nil
 *load* nil
 *Minibuf-1* nil  <<-- here it thinks that Minibuf-1 is not a minibuffer
 *Minibuf-0* t

Is this supposed to happen?

Best regards,
Platon Pronko