Comment # 48 on bug 1165780 from Fabian Vogt

The declined btrfsmaintenance 0.5 sr would not even work correctly on a fresh
installation. The preset would enable the .service, but without an [Install]
section nothing happens. The .path unit was only ever installed because of the
Also=btrfsmaintenance-refresh.path in the [Install] section, which got dropped.
Effectively it would've made no difference to existing installs and completely
disable the refreshing on fresh installation.

I made the change to the preset and submitted it: sr 829721

Clean state: btrfsmaintenance-refresh.service + .path both enabled.
With just new btrfsmaintenance: no change, both .service and .path still
enabled
With just new systemd-presets-common-SUSE: Works as expected, installation
prints:
Resetting btrfsmaintenance-refresh.path to the new default: enable
Resetting btrfsmaintenance-refresh.service to the new default: disable
Removed
/etc/systemd/system/multi-user.target.wants/btrfsmaintenance-refresh.service.
First new systemd-presets-common-SUSE, then new btrfsmaintenance: Same as ^
First new btrfsmaintenance, then new systemd-presets-common-SUSE: Same as ^

Even if manually enabled, the new systemd-presets-common-SUSE disables the
.service properly.

Downgrading of systemd-presets-common-SUSE also works, it prints:
Resetting btrfsmaintenance-refresh.path to the new default: disable
Removed
/etc/systemd/system/multi-user.target.wants/btrfsmaintenance-refresh.path.
Resetting btrfsmaintenance-refresh.service to the new default: enable
Created symlink
/etc/systemd/system/multi-user.target.wants/btrfsmaintenance-refresh.service ->
/usr/lib/systemd/system/btrfsmaintenance-refresh.service.
Created symlink
/etc/systemd/system/multi-user.target.wants/btrfsmaintenance-refresh.path ->
/usr/lib/systemd/system/btrfsmaintenance-refresh.path.

Downgrading systemd-presets-common-SUSE with btrfsmaintenance 0.5 results in
the
broken "fresh install" case, which is expected.

So just systemd-presets-common-SUSE is enough to get the wanted behaviour and
the removal of [Install] in btrfsmaintenance-refresh.service is mostly a
cleanup
and to avoid manual enabling in the future. Care has to be taken that this
version
of btrfsmaintenance is not used together with old systemd-presets-common-SUSE,
as
it results in a disabled .path unit.