I�m not sure. Probably a concurrency issue (undetected so far) made a duplicate version of Pharo team.
Then because of the duplicate Pharo team, a second Pharo40Inbox was created.
Then some people committed slices to the new (and empty) Pharo40Inbox.
So, the solution was:
- unify both projects (so all slices are in just one place)
- detect and remove wrong Pharo40Inbox
- detect and remove wrong Pharo team
- review all structure so it has correct ids, etc.
(viewed like this, looks easy, but it was a lot of tedious work :) )