bug#52931: 27.1; image-size sometimes yields a wrong image size in pixels

[Eli Zaretskii]

> Cc: 52931@debbugs.gnu.org
> From: Lars Ingebrigtsen <larsi@gnus.org>
> Date: Wed, 28 Sep 2022 19:28:03 +0200
> 
> Markus Triska <triska@metalevel.at> writes:
> 
> > Why could Eli not reproduce it though?
> 
> Presumably he evaluated the form with the current directory in the
> directory the file was in.

Relative file names of images aren't expanded against the current
directory.  I guess this factoid is part of the problem.