Comment # 3 on bug 1090346 from Michael Andres

(In reply to Dominique Leuenberger from comment #2)
> OTOH: zypper fires up the InstallAppdata.sh async and out of control anyway
> - so even if that one would fail, zypp would not see errors about it (and I
> also doubt we would get any output from InstallAppdata itself)

Yes, ZYPP is not interested in this script. It's just a trigger, publishing
which repo caches have been refreshed. The gnome software installer wants to
know this in order to fetch updated appdata downloaded with the repo. ZYPP just
shoots and forgets.