Comment 11 for bug 1548486

"So the fix could be what is proposed, or/and moving the packagekit hook to the right place."

I'd say both.

I understand that, per https://bugs.launchpad.net/ubuntu/+source/packagekit/+bug/1548480/comments/8, the PackageKit side of the issue would be fixed if Ubuntu shipped version 0.8.14 or later, which has been true since Xenial as Andreas observes in comment #10.

Regarding the pm-utils fix, the problems seem to be that no-one is prepared to own and update pm-utils, and the systemd versions of Ubuntu don't need pm-utils (in fact, could be seriously confused by it). Consequently the fix should be implemented in Debian, as Christian says in comment #7, where pm-utils has been recognised as orphaned and is still being updated despite Debian using systemd.