Package: gnome-software Version: 48.3-2 Severity: important -- Description --
After a fresh Flathub remote add (`flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo`, system-wide scope), GNOME Software shows zero apps in every view (curated, recent, search, category browsing), despite the Flatpak stack itself being fully healthy. Confirmed via `flatpak remote-info flathub org.gimp.GIMP` that appstream data is present and valid, and confirmed the on-disk appstream commit at /var/lib/flatpak/appstream/flathub/x86_64/active/ contains a full 49MB appstream.xml plus icons/. Running `gnome-software --verbose 2>&1 | grep -i query` shows every single plugin — not just flatpak — failing identically: Gs plugin 'appstream' failed to list apps: Unsupported query Gs plugin 'flatpak' failed to list apps: Unsupported query Gs plugin 'fwupd' failed to list apps: Unsupported query Gs plugin 'packagekit' failed to list apps: Unsupported query This happens even after the .xmlb silo caches (~/.cache/gnome-software/appstream/components.xmlb and ~/.cache/gnome-software/flatpak-user-user/components.xmlb) are confirmed present on disk and loading successfully (no "file not found" errors on second launch) — ruling out a cache/race condition. Since this affects every plugin uniformly, including ones with no relation to flatpak/appstream data (fwupd, packagekit), this appears to be an incompatibility between the XPath-style queries GNOME Software 48.3 issues against XbSilo and the libxmlb version currently in Trixie. -- System Information -- gnome-software: 48.3-2 libxmlb2: 0.3.22-1 gnome-software-plugin-flatpak: 48.3-2 flatpak: 1.16.1 Distribution: Debian Trixie (13) Architecture: amd64 -- Steps to reproduce -- 1. Fresh Debian Trixie install with GNOME 2. sudo apt install flatpak gnome-software-plugin-flatpak 3. flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo 4. sudo flatpak update --appstream 5. Launch gnome-software --verbose 6. Observe: no apps shown anywhere in the UI; verbose log shows "Unsupported query" for every enabled plugin
