bug#77678: 31.0.50; Infloop in multi-isearch-read-files

[Eli Zaretskii]

> From: Michael Heerdegen <michael_heerdegen@web.de>
> Cc: 77678@debbugs.gnu.org
> Date: Wed, 09 Apr 2025 15:13:20 +0200
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > What method did you have in mind?
> 
> `expand-file-name' both arguments?  I dunno whether this suffices when
> Tramp comes into play, though.

expand-file-name is a good starting point, yes.  If that's not enough,
then comparing the results with file-equal-p should do.  (If even that
doesn't work in all cases, there's probably more here than meets the
eye.)