Comment 4 for bug 1978007

Thanks, it is better, the changelog needs fixing though

    - d/control:
      + Drop <!s390x>, since the packages are now also available in s390x
      + Drop >= 1.8 version requirement for network-manager since all supported releases satisfy it

is that really a delta we have over Debian? It sounds rather like a change we got from Debian.
You also forgot to list back the patches

One extra note, Debian added a recommends on gnome-icon-theme which is in universe in Ubuntu, could you replace it with humanity-icon-theme which also provides the gnome-lockscreen icon which justified the change and is installed by default on Ubuntu