What is the point of the 'Detached' option in the projects search filter (on the web interface)? GroupShare has no knowledge of detached projects - they're deleted from the DB except for a record of the background task having been run - so there's currently no way for GroupShare to search for detached projects.
More damagingly, this filter option gave us the impression that GroupShare had at least some awareness of detached projects, which we found afterwards isn't the case.
Please either remove this misleading and functionless option OR modify GroupShare to have some knowledge of detached projects.