Unexpected closing of bugs
When testing bug migration of gnome-shell-extension issues, I ran into another of those encoding bugs. It turned out to be triggered by a bug that wasn't actually meant to be migrated to gitlab, so I set that aside for the time being and did the actual migration.
After finishing that, I started debugging the previously found issue, using the test repository on gitlab-test as previously. To my surprise, I ended up closing dozens of bugs erroneously, because apparently not providing bugzilla credentials on the command line doesn't necessarily mean that we won't get logged into bugzilla