Easiest solution: remove the breaks on gnome-software and plasma-discover and add a revert of this upstream patch: https://github.com/ximion/appstream/commit/1e43075ccaf55dd269f2406d758e332fd95cda39
Alternatively add the apt config snippet in the new GNOME Software package version to the one in Xenial and adjust the breaks to a lower version.
Easiest solution: remove the breaks on gnome-software and plasma-discover and add a revert of this upstream patch: https:/ /github. com/ximion/ appstream/ commit/ 1e43075ccaf55dd 269f2406d758e33 2fd95cda39
Alternatively add the apt config snippet in the new GNOME Software package version to the one in Xenial and adjust the breaks to a lower version.