fix ModelSignal.connect() missing 1 required positional argument: 're…

…ceiver'

onadata/apps/api/tests/viewsets/test_abstract_viewset.py

@@ -47,6 +47,7 @@
 from onadata.apps.main.models import MetaData, UserProfile
 from onadata.apps.main.tests.test_base import TestBase
 from onadata.apps.viewer.models import DataDictionary
+from onadata.apps.viewer.models.data_dictionary import create_export_repeat_register
 from onadata.libs.serializers.project_serializer import ProjectSerializer
 from onadata.libs.utils.common_tools import merge_dicts
 
@@ -146,7 +147,9 @@ def tearDown(self):
 
         # Enable signals
         post_save.connect(
-            sender=DataDictionary, dispatch_uid="create_export_repeat_register"
+            sender=DataDictionary,
+            dispatch_uid="create_export_repeat_register",
+            receiver=create_export_repeat_register,
         )
 
     def user_profile_data(self):