bug#44502:

[Eli Zaretskii <eliz@gnu.org>]

> From: andrei.elkin@pp.inet.fi
> Cc: 44502@debbugs.gnu.org
> Date: Thu, 11 Aug 2022 22:10:12 +0300
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> >> From: andrei.elkin@pp.inet.fi
> >> Cc: 44502@debbugs.gnu.org
> >> Date: Thu, 11 Aug 2022 21:19:06 +0300
> >> 
> >> (gdb) p window
> >> $4 = XIL(0x55555b038855)
> >> (gdb) xwindow
> >> $5 = (struct window *) 0x55555b038850
> >> 124x1+0+80
> >> (gdb) print XWINDOW(window)->contents
> >> $6 = XIL(0x7fffea1bd07d)
> >> (gdb) xbuffer
> >> $7 = (struct buffer *) 0x7fffea1bd078
> >> 0x7fffea4aedc1 " *Minibuf-0*"
> >> (gdb) print selected_window
> >> $8 = XIL(0x55555b038645)
> >> (gdb) xwindow
> >> $9 = (struct window *) 0x55555b038640
> >> 124x80+0+0
> >> (gdb) print XWINDOW(selected_window)->contents
> >> $10 = XIL(0x5555577f9475)
> >> (gdb) xbuffer
> >> $11 = (struct buffer *) 0x5555577f9470
> >> 0x555559788ff0 "magit: A<10.6>"
> >
> > Do you remember what were you doing when this assertion violation
> > happened?
> 
> Something like
> 
>   C-u M-x shell
> 
> >
> >
> > Also, are you using a separate minibuffer frame?
> 
> No

Then I tend to think that the assertion there is simply wrong.

Adding Alan to CC, since this seems to be related to the
minibuffer-follows-selected-frame feature.  Alan, this happens in
Emacs 28, so trying to fix it on the release branch in a safe way is
important.  TIA.