Luko van der Maas
2019-11-13T21:59:18+01:00

A group membership can be added without filling in the group.

### Current behaviour / Reproducing the bug

1. Create a group membership for a user but don't fill in a group even though it is bold
2. breakage

### Expected behaviour

1. Create a group membership for a user but don't fill in a group even though it is bold
2. a error message that is more helpfull