Go back to triggering on Pungi status change, not PDC
I tweaked wikitcms again to make this possible, using something
similar to the old 'pass the cid through' workaround but a bit
less icky. This is kinda necessary because PDC just flakes too
much; there've been at least two and possibly three stretches
where it just gave up importing composes until someone noticed.
Signed-off-by: Adam Williamson <email@example.com>