Comment # 3 on bug 1139996 from Thomas Blume

(In reply to Franck Bui from comment #2)
> (In reply to Thomas Blume from comment #1)
> > 
> > Franck, what is the general handling here, does the %service_del_postun
> > macro need to be called for templates at all?
> 
> I dont think so. If the instantiated services needs to be restarted then the
> package should do that explicitly I would say.

Thanks Franck.
Bernhard, I've built testpackages with a proposed fix at:

https://build.opensuse.org/package/binaries/home:tsaupe:branches:openSUSE:Factory:udisks2/udisks2/openSUSE_Factory

Please test and confirm that the issue is fixed therewith.