Add missing .all().

biscuit/apps/alsijil/views.py

@@ -174,7 +174,7 @@ def full_register_group(request: HttpRequest, id_: int) -> HttpResponse:
         group
     ).distinct().prefetch_related(
         'documentations', 'personal_notes'
-    )
+    ).all()
 
     weeks = CalendarWeek.weeks_within(group.school.current_term.date_start, group.school.current_term.date_end)
     periods_by_day = {}