Bug#1053829: xdg-desktop-portal-gnome: Firefox flatpak cannot open the file chooser portal

[Maximiliano]

Package: xdg-desktop-portal-gnome
Version: 43.1-2
Severity: normal

Opening the file chooser from the firefox flatpak, or any other sandboxed app crashes 
xdg-desktop-gnome-portal.

See https://github.com/flatpak/xdg-desktop-portal for a traceback. After some digging, the
gschema of FileChooser contains a view-type in newer versions but not in the one shipped by gtk4 4.8.1.




-- System Information:
Debian Release: 12.2
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable-debug'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 6.2.16-16-pve (SMP w/32 CPU threads; PREEMPT)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages xdg-desktop-portal-gnome depends on:
ii  dbus-user-session                            1.14.10-1~deb12u1
ii  dbus-x11                                     1.14.10-1~deb12u1
ii  dconf-gsettings-backend [gsettings-backend]  0.40.0-4
ii  gsettings-desktop-schemas                    43.0-1
ii  libadwaita-1-0                               1.2.2-1
ii  libc6                                        2.36-9+deb12u3
ii  libcairo2                                    1.16.0-7
ii  libfontconfig1                               2.14.1-4
ii  libgdk-pixbuf-2.0-0                          2.42.10+dfsg-1+b1
ii  libglib2.0-0                                 2.74.6-2
ii  libgnome-bg-4-2                              43.2-2
ii  libgnome-desktop-4-2                         43.2-2
ii  libgtk-4-1                                   4.8.3+ds-2+deb12u1
ii  libx11-6                                     2:1.8.4-2+deb12u2
ii  xdg-desktop-portal                           1.16.0-2
ii  xdg-desktop-portal-gtk                       1.14.1-1

Versions of packages xdg-desktop-portal-gnome recommends:
ii  gnome-settings-daemon  43.0-4
ii  gnome-shell            43.6-1~deb12u2

Versions of packages xdg-desktop-portal-gnome suggests:
ii  accountsservice  22.08.8-6
pn  evince           <none>

-- no debconf information