--- a/server/src/metaeducation/signals.py	Tue Mar 01 17:39:09 2016 +0100
+++ b/server/src/metaeducation/signals.py	Wed Mar 02 10:45:20 2016 +0100
@@ -7,7 +7,7 @@
 @receiver(post_save)
 def reference_created_renkan(sender, instance, created, **kwargs):
     from renkanmanager.models import Renkan
-    if created and sender == Renkan:
+    if created and sender == Renkan and instance.source_renkan_guid:
         token_response = requests.post(
             settings.MTDC_CLIENT_CREDENTIALS_TOKEN_URL+"?grant_type=client_credentials",
             data = {},
@@ -28,7 +28,7 @@
                     "Authorization": "Bearer %s" % token
                 }                             
             )
-        
+"""     
 @receiver(post_save)
 def reference_modified_title(sender, instance, created, **kwargs):
     from renkanmanager.models import Renkan, Revision
@@ -58,4 +58,5 @@
                     headers = {
                         "Authorization": "Bearer %s" % token
                     }                             
-                )
\ No newline at end of file
+                )
+"""
\ No newline at end of file