--- a/server/python/django2/renkanmanager/serializers.py	Tue Jun 21 17:53:06 2016 +0200
+++ b/server/python/django2/renkanmanager/serializers.py	Wed Jun 22 01:03:58 2016 +0200
@@ -84,7 +84,7 @@
             raise serializers.ValidationError(str(ve.args[0]))
         # FORCE Renkan reload.
         # TODO: How to avoid the reload ???
-        return Renkan.objects.get(id=renkan.id)
+        return Renkan.objects.select_related('current_revision').get(id=renkan.id)
 
     def validate_workspace_id(self, value):
         if self.instance is not None: