Fix error when accessing lesson documentation as a student

aleksis/apps/alsijil/views.py

@@ -231,8 +231,7 @@ def register_object(
             "alsijil.view_register_object_personalnote_rule", register_object
         ):
             persons = Person.objects.filter(
-                Q(pk=request.user.person.pk)
-                | Q(person__member_of__in=request.user.person.owner_of.all())
+                Q(pk=request.user.person.pk) | Q(member_of__in=request.user.person.owner_of.all())
             ).distinct()
         else:
             persons = Person.objects.all()