Dear Maintainer,

Opening PDF files located on GVFS mounts provided by GNOME Online Accounts (for
example, Google Drive) fails in Papers on Debian 13 (Trixie). The same files
can be opened successfully with Evince.

What led up to the situation?

I use GNOME Online Accounts to access files stored in Google Drive. PDF files
are exposed through GVFS and can be accessed from the GNOME file manager.

What exactly did you do?

I attempted to open a PDF stored in Google Drive using Papers.

I investigated the issue and found that it has already been fixed upstream by
commit:

https://gitlab.gnome.org/GNOME/Incubator/papers/-/commit/d1ea5f93b5465386d4bfb548f7fe6f1b8469cdfb

This fix is included in Papers 48.7 and later.

To verify that this is the correct fix, I backported the single upstream commit
to the Debian 13 package (48.3-1), rebuilt the package on Debian 13 using
sbuild, installed it, and tested it.

What was the outcome?

With the unmodified Debian package (48.3-1), Papers is unable to open PDFs from
GVFS-backed locations such as Google Drive.

After applying the upstream patch, Papers opens the same PDFs correctly.

What outcome did you expect instead?

I expected Papers to open PDFs from GVFS mounts in the same way as local files
and consistently with Evince.

The attached debdiff contains only the backport of the upstream fix and is
proposed as a candidate for inclusion in a future Debian 13 (Trixie) stable
update.

Thank you,

Eduardo Leggiero