bug#81561: 31.0.91; speedbar-window-mode creates stale idle timers

> From: Daniel Mendler <[email protected]>
> Cc: [email protected],  [email protected]
> Date: Tue, 11 Aug 2026 11:45:28 +0200
> 
> Eli Zaretskii <[email protected]> writes:
> 
> >> From: Daniel Mendler <[email protected]>
> >> Cc: Eli Zaretskii <[email protected]>,  [email protected]
> >> Date: Sun, 09 Aug 2026 17:01:57 +0200
> >> 
> >> Ciao Vincenzo!
> >> 
> >> Vincenzo Pupillo <[email protected]> writes:
> >> > Ciao, sorry for the delay—I'm on vacation. The attached patch should fix the 
> >> > bug. It's partly due to an incorrect condition in 'dframe-set-timer' that 
> >> > doesn't follow what's written in the comment. This fix also resolves an issue 
> >> > with 'speedbar-frame-mode,' which wasn't clearing the timer even when 
> >> > 'speedbar-buffer' was killed.
> >> >
> >> > @Daniel, can you please check to see if the patch fixes the problem?
> >> 
> >> Yes, thank you! The patch fixes the problem. The stale timers are gone
> >> when the speedbar is closed.
> >> 
> >> Eli, can you please apply this to emacs-31, since it fixes an issue,
> >> which has been newly introduced via the new speedbar-window-mode?
> >
> > Thanks, done, and closing the bug.
> 
> Eli, can you please reopen the bug since it is not fully fixed. See my
> last mail. The problem is less pronounced, but occasionally stale timers
> are still around. They even cause dframe error messages when they run
> while the speedbar window is closed.

I can reopen the bug, as can you.  But it's actually not very
important, because I've seen your report about the left-overs, and am
still tracking this issue.  Don't worry.