bug#47969: 28.0.50; Losing minibuffer focus in trying M-x command

[Eli Zaretskii]

> Date: Sat, 01 May 2021 20:20:16 +0000
> From: Gregory Heytings <gregory@heytings.org>
> Cc: 47969@debbugs.gnu.org
> 
> Patch attached.  Could you please test it, and confirm that it correctly 
> fixes the issue?
> 
> Cc'ing Martin, who authored most of the handle-select-window function. 
> The recipe is upthread.

FWIW, I think we should instead temporarily disable
mouse-autoselect-window when a minibuffer is active.