Fix get_objects of LessonEvent and complete related_to_person of LessonEvent manager

aleksis/apps/chronos/models.py

@@ -1589,6 +1589,9 @@ class LessonEvent(CalendarEvent):
                     return objs.for_room(obj_id)
                 elif type_ == "COURSE":
                     return objs.for_course(obj_id)
+
+            if "own" in params:
+                return objs
         if request:
             return objs.for_person(request.user.person)
         return objs