Merge pull request #402 from openweave/feature/fix_flush_update_error_return

NoMorePendingEventCbHelper needs to be called when flush empty updates

Author: robszewczyk

src/lib/profiles/data-management/Current/SubscriptionClient.cpp

@@ -3250,6 +3250,11 @@ WEAVE_ERROR SubscriptionClient::FlushUpdate(bool aForce)
 exit:
     UnlockUpdateMutex();
 
+    if (mPendingSetState == kPendingSetEmpty)
+    {
+        NoMorePendingEventCbHelper();
+    }
+
     return err;
 }