Fix - SQLSTATE[42000]: Syntax error - If user has no permission.

If you have a user without any permission and you try to do a  "Redoubt::getPermissions($user)" you will get an SQLSTATE.

"SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')' at line 1 (SQL: select * from `group_object_permission` where `group_id` in ()) (Bindings: array ( ))"