bug#60308: 30.0.50; Can't read some PDF files any more

[Eli Zaretskii]

> From: Stephen Berman <stephen.berman@gmx.net>
> Cc: Eli Zaretskii <eliz@gnu.org>,  60308@debbugs.gnu.org,
>   yantar92@posteo.net,  bugs@gnu.support
> Date: Fri, 06 Jan 2023 12:44:16 +0100
> 
> On Fri, 06 Jan 2023 11:12:19 +0000 Gregory Heytings <gregory@heytings.org> 
> wrote:
> 
> >>
> >> Attached (gzipped).  In the mean time I found the problem: that file
> >> contains occurrences of "<" and that causes the error; after replacing them
> >> with "&lt;" the PDF is displayed correctly.
> >>
> >> [...]
> >>
> >> mutool version 1.21.0
> >>
> >
> > Thanks.  So this looks like a mutool bug, which generates incorrect SGV 
> > files,
> > right?
> 
> Yep.  I just converted the PDF to SVG with mutool 1.19.0 and the
> resulting image displays correctly and there is no "<" in the file.

xmllint clearly says the file is invalid, due to those "<" characters.