bug#71927: 29.4; ibuffer-do-isearch and ibuffer-do-isearch-regexp not prompting for input

[Eli Zaretskii]

> From: Stephen Berman <stephen.berman@gmx.net>
> Cc: Eshel Yaron <me@eshelyaron.com>,  kickingvegas@gmail.com,
>   71927@debbugs.gnu.org,  basil@contovou.net,  jpw@gnu.org,
>   juri@linkov.net
> Date: Thu, 04 Jul 2024 12:06:40 +0200
> 
> >> FWIW, AFAICT everything is working correctly, it's just that the
> >> "Operation finished" message hides the prompt.  ibuffer-do-isearch
> >> should tell define-ibuffer-op not to display that message, somehow.
> >
> > I don't see how this could be considered "correct": the "Operation
> > finished" message is supposed to be shown only after the Isearch is
> > finished in all the marked buffer, not before.  It looks like we need
> > a function that will not return until all the buffers where searched,
> > because that's what define-ibuffer-op expects.  Don't you agree?
> 
> The attached patch appears to DTRT, but I only tested it briefly.

Thanks, but does it really make sense to change define-ibuffer-op to
fix the functions which (evidently) use it incorrectly?  I think the
fix needs to be in the same place where the bug is.