Pretty simple steps to reproduce:

1. Create a GitHub Org Folder
2. Go back to 'Configure'
3. Change "Name" field to something
4. Hit Save
5. Confirm you want to rename
6. Hit page with "Recomputation is currently in progress" (http://localhost:8080/job/reiseburo/rename?newName=reise&blocker=Recomputation+is+currently+in+progress)
7. Wait forever and ever and ever

Interestingly, this does seem to kick-off a Re-scan of the Organization, but it doesn't ever rename the folder.