Dear Maintainer,

this is my first debian bug report. I am sorry, if something is not correct :)

   * What led up to the situation?
     * tried to mount a davs share (simple apache mod_dav vhost), getting "Message is already in session queue" error.
   * What exactly did you do (or not do) that was effective (or
     ineffective)?
     * gio mount davs://my.webdav/share/ ~/mnt
   * What was the outcome of this action?
     * error massage above
   * What outcome did you expect instead?
     * davs should be mounted

There exists an issue on gnome gitlab gvfs project, https://gitlab.gnome.org/GNOME/gvfs/-/issues/636
It seems to be fixed in 1.50.4, so it probably need a backport to 1.50.3 in debian stable (bookworm)

Thank you a lot!
Marcus

Hi! A little update to the topic:

I upgraded my stables installation gvfs packages to the ones from testing, and the issue still exists:

```
mhanisch@marcus-debian:~$ gio mount davs://my.webdav/share/ mnt
gio: file:///home/mhanisch/mnt: Datenträger unterstützt Einhängen nicht
Anmeldung erforderlich
Bitte geben Sie das Passwort für »Authorised Users Only« ein:
User: marcus.hanisch
Password:
gio: davs://my.webdav/share: Diese Nachricht ist bereits in der Warteschlange der Sitzung
mhanisch@marcus-debian:~$ gio --version
2.74.6
mhanisch@marcus-debian:~$ dpkg -l "gvfs-*"
Gewünscht=Unbekannt/Installieren/R=Entfernen/P=Vollständig Löschen/Halten
| Status=Nicht/Installiert/Config/U=Entpackt/halb konFiguriert/
         Halb installiert/Trigger erWartet/Trigger anhängig
|/ Fehler?=(kein)/R=Neuinstallation notwendig (Status, Fehler: GROSS=schlecht)
||/ Name            Version      Architektur  Beschreibung
+++-===============-============-============-================================================
ii  gvfs-backends   1.50.4-2     amd64        userspace virtual filesystem - backends
ii  gvfs-common     1.50.4-2     all          userspace virtual filesystem - common data files
ii  gvfs-daemons    1.50.4-2     amd64        userspace virtual filesystem - servers
ii  gvfs-fuse       1.50.4-2     amd64        userspace virtual filesystem - fuse server
ii  gvfs-libs:amd64 1.50.4-2     amd64        userspace virtual filesystem - private libraries
mhanisch@marcus-debian:~$ lsb_release -a
No LSB modules are available.
Distributor ID:	Debian
Description:	Debian GNU/Linux 12 (bookworm)
Release:	12
Codename:	bookworm
mhanisch@marcus-debian:~$
```

I'm really not sure if this is now a task  for debian team or gvfs team - i made a message to both bug trackers :)