bug#81630: 32.0.50; completions-format 'vertical scrolls the completion window on TAB tapping

> From: Sean Whitton <[email protected]>
> Cc: [email protected], [email protected]
> Date: Mon, 17 Aug 2026 13:46:51 +0100
> 
> Eli Zaretskii [17/Aug  1:58pm +03] wrote:
> >> From: Stephen Berman <[email protected]>
> >> Cc: "[email protected]" <[email protected]>, Eli Zaretskii
> >>  <[email protected]>, Sean Whitton <[email protected]>
> >> Date: Sun, 16 Aug 2026 23:53:23 +0200
> >>
> >> On Sun, 16 Aug 2026 21:07:42 +0000 lucas jimenez <[email protected]> wrote:
> >>
> >> > I can’t say if it’s correct or not, but it’s fixed for me. Thanks
> >>
> >> Thanks for confirming.
> >>
> >> > On another note:  This patches will be applied to emacs 31.1 also?
> >>
> >> This issue already exists in Emacs 30 (thus, in particular, before the
> >> significant changes involving the vertical completions-format made in
> >> commit 77ca60b48d01), so since Emacs 31 is close to being released, I
> >> think it's too late to add my fix to the release branch (assuming it's
> >> acceptable in the first place).  But that decision is up to the
> >> maintainers; Eli, Sean?
> >
> > Seems safe enough (I know, "famous last words").  Sean, WDYT?
> 
> I think I'd prefer not.

OK, then master it is.