Flatpak: extensions and locales are not installed

[unrud]

Installing a Flatpak app via Gnome Software, doesn't install required extensions (like locales, codecs, drivers...). Only the runtime and the app itself get installed.

The impact reaches from apps just not being translated, to apps not starting at all (e.g. when the proprietary NVIDIA driver extension is missing).

When an app is installed from a *.flatpak file via Gnome Software, it doesn't even install the runtime. The app doesn't work at all, unless the required runtime was already installed.

Installing apps via Flatpak's command line interface works as expected and installs all required extensions.

The bug only seem to affect Ubuntu 18.04. It works in 18.10.

Upstream bug?: https://gitlab.gnome.org/GNOME/gnome-software/issues/174

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Sebastien Bacher (seb128)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. However, I am closing it because the bug has been fixed in the current version of Ubuntu.

This is a significant bug in Ubuntu. If you need a fix for the bug in previous versions of Ubuntu, please perform as much as possible of the SRU Procedure [1] to bring the need to a developer's attention.

[1]: https://wiki.ubuntu.com/StableReleaseUpdates#Procedure