fix merge user mailchimp subscriptions

osf/external/messages/celery_publishers.py

@@ -31,8 +31,8 @@ def publish_merged_user(user):
         _publish_user_status_change.s(
             body={
                 'action': 'merge',
-                'user_uri': user.get_semantic_iri(),
-                'merged_user_uri': user.merged_by.get_semantic_iri(),
+                'into_user_uri': user.get_semantic_iri(),
+                'from_user_uri': user.merged_by.get_semantic_iri(),
             },
         )
     )

osf_tests/test_user.py

@@ -17,7 +17,7 @@
 from importlib import import_module
 
 from framework.auth.exceptions import ExpiredTokenError, InvalidTokenError, ChangePasswordError
-from framework.auth.signals import user_account_merged, user_account_deactivated
+from framework.auth.signals import user_account_merged
 from framework.analytics import get_total_activity_count
 from framework.exceptions import PermissionsError
 from framework.celery_tasks import handlers
@@ -1507,7 +1507,7 @@ def test_send_user_merged_signal(self, mock_get_mailchimp_api, dupe, merge_dupe)
 
         with capture_signals() as mock_signals:
             merge_dupe()
-            assert mock_signals.signals_sent() == set([user_account_merged, user_account_deactivated])
+            assert mock_signals.signals_sent() == set([user_account_merged])
 
     @pytest.mark.enable_enqueue_task
     @mock.patch('website.mailchimp_utils.get_mailchimp_api')

website/profile/views.py

@@ -545,7 +545,7 @@ def send_account_merged_message(user):
 def unsubscribe_old_merged_account_from_mailchimp(user):
     """ This is a merged account (an old account that was merged into an active one) so it needs to be unsubscribed
     from mailchimp."""
-    for key, value in user.mailchimp_mailing_lists.items():
+    for key, value in user.merged_by.mailchimp_mailing_lists.items():
         if value:
             update_mailchimp_subscription(user, list_name=key, subscription=key)
         update_mailchimp_subscription(user.merged_by, list_name=key, subscription=False)