This took a bit longer than I was hoping but we finally have a
staging
instance of the new blocker tracking app up and running:
https://qa.stg.fedoraproject.org/blockerbugs/
So which instance should we use now,
http://qa.fedoraproject.org/blockerbugs/ or
https://qa.stg.fedoraproject.org/blockerbugs/ ?
They don't display the same data (there are some extra bugs in the stg version and
also the 'recent activity' indicators are different).