Repo fork in a weird state

I've tried to fork a repo. It left it for about 30 minutes, and it was still busy. The text said to go to admin, delete repo, and try again. So I did.

Now I'm stuck with a repo that doesn't exist (according to http://bitbucket.org/wanwizard/codeigniter), but I can't fork again (error: repo already exists), while the status message says "You are currently on the free plan, using 6.9 MB out of 1.0 GB total", which is about the size of the forked repo.

How can I permanently delete that repo so I can create the fork again?