Bug#975289: Acknowledgement (systemd: always reporting unit file has "changed on disk" when override.conf is present)

[Richard van den Berg]

This looks a lot like https://github.com/systemd/systemd/issues/17312 
which apparently was fixed by https://github.com/systemd/systemd/pull/16885

Can this PR be applied to the debian systemd package in unstable? Or do 
I need to wait until 247 is officially released?