Comment # 8 on bug 968405 from Dominique Leuenberger

(In reply to Egbert Eich from comment #3)
> I meant to say the %service_del_postun macro defined in /usr/lib/rpm/macros.
> The reason why DISABLE_RESTART_ON_UPDATE=yes has no effect at all is that
> this variable is set by a script /etc/sysconfig/services which is sourced
> before the variable is evaluated.
> Since the intended use of this variable is tantamount to not to execute
> %restart_on_update and thus %service_del_postun at all, let's remove this
> line entirely.

This only matches reality in the update case, but not in a possible 'uninstall'
case, which is also handled by the macro line.

I'd much rather see the macro fixed rather than packages going on and removing
the macros.