how to reproduce

• connect to explorer in a project
• click on rights
• click on assign a user, select the user and OK

Actual behavior

• Nothings happen
• the user is not assigned
• nothing is the log

Expected behavior

• the user is assigned

Note

• I forgot to add the table groups but then after adding it, it is not better!
  this is the list of my tables:

  +----------------------+
  | Tables_in_explorer   |
  +----------------------+
  | Groups               |
  | Groups_Users         |
  | Rights_GroupRights   |
  | Rights_Profile       |
  | Rights_ProfileRights |
  | Rights_UserRights    |
  +----------------------+
  6 rows in set (0.00 sec)