Rel-eng uses a script like this to rebuild all packages, you could
change it
to only rebuild a given set of pacakges:
https://fedorahosted.org/rel-eng/browser/scripts/mass-rebuild.py
Cool will try that in future.
Bryan: there seems to be a MassRebuild scheduled next week anyway
so we could just wait but if you want to try the script feel free. :)
Jens