bug#62355: 30.0.50; C-g doesn't always quit minibuffer on first press

[Eli Zaretskii]

> From: Sean Whitton <spwhitton@spwhitton.name>
> Cc: João Távora <joaotavora@gmail.com>
> Date: Thu, 23 Mar 2023 12:31:29 -0700
> 
> I've been seeing something similar and I have a theory as to the cause.
> I am using Icomplete, and I think what happens is that the C-g
> interrupts something Icomplete is doing, rather than serving to exit the
> minibuffer.  Toon, are you using Icomplete or similar?
> 
> Here is my evidence.  One machine on which I use Emacs is underpowered.
> With icomplete-show-matches-on-no-input non-nil, on that machine, I type
> M-x, and wait for the completions to appear.  I do this several times so
> that I have an intuitive sense for how long they take to appear.  And
> then I type M-x, and try to hit C-g while Icomplete is computing.  I can
> reliably trigger the bug.

It isn't a bug, but the expected and intentional behavior.