diff --git a/src/c3nav/editor/models/changedobject.py b/src/c3nav/editor/models/changedobject.py
index 16618344..eb531922 100644
--- a/src/c3nav/editor/models/changedobject.py
+++ b/src/c3nav/editor/models/changedobject.py
@@ -291,7 +291,7 @@ class ChangedObject(models.Model):
             related_model = field.related_model
             if related_model._meta.app_label != 'mapdata':
                 continue
-            if related_model.__name__ == 'AccessPermission':
+            if related_model.__name__ in ('AccessPermission', 'Report'):
                 continue
             kwargs = {field.field.name+'__pk': self.obj_pk}
             if self.changeset.wrap_model(related_model).objects.filter(**kwargs).exists():
diff --git a/src/c3nav/mapdata/models/report.py b/src/c3nav/mapdata/models/report.py
index 0aa73ca2..4747850e 100644
--- a/src/c3nav/mapdata/models/report.py
+++ b/src/c3nav/mapdata/models/report.py
@@ -70,6 +70,8 @@ class Report(models.Model):
 
     @cached_property
     def location_specific(self):
+        if self.location is None:
+            return None
         return self.location.get_child()
 
     @classmethod