Nonetype object has no attribute update #375 (#374)

analytics/analytics/analytic_unit_manager.py

@@ -74,7 +74,8 @@ class AnalyticUnitManager:
         if task['type'] == 'PUSH':
             # TODO: do it a better way
             res = await worker.recieve_data(data, payload['cache'])
-            res.update({ 'analyticUnitId': analytic_unit_id })
+            if res:
+                res.update({ 'analyticUnitId': analytic_unit_id })
             return res
         elif task['type'] == 'LEARN':
             if 'segments' in payload: