- Analyse a project and make sure some of its issues are assigned to you
- Create an issue filter with "assigne" set to you, and save it
- Load this issue filter by clicking on its name: everything's OK
- Then in the form, remove your name, select "Unassigned" and click "Search" => KO - no results are displayed
- however, if you select another user instead of "Unassigned", it works
- this means that the only case that breaks is when selected "Unassigned"
Note: this bug already existed in 4.0 (i.e. before the new search form).