added a primary slug as an additional slug - got an error. added a slug in use on another project - got an error. added multiple good slugs and they worked. removed slugs and it worked. made some remark using multiple new slugs and they all linked to the correct project
ran epriestley's case
- Create project "A".
- Give it additional slug "B".
- Try to create project "B".
and i got a nice error about hashtag collision