A message in the log after adding "Sequence Marker" element to the scene in Workflow Designer

Scenario:

1. Open Workflow Designer.
2. Put "Sequence Marker" element to the scene.
   Current state: there is the following message in the log (details level):

   [DETAILS][13:32] QObject::connect: No such slot U2::WorkflowScene::sl_refreshBindings() in ../../../../trunk_1/src/plugins/workflow_designer/src/WorkflowViewController.cpp:1035

   Or in release mode:

   [DETAILS][13:40] QObject::connect: No such slot U2::WorkflowScene::sl_refreshBindings()
   [quote}

I don't know, what consequences will be because of that failed connection. Fix the connection or remove it, if it is useless.