code: function inboundPayload( storedPipe, pipe ){
  	if ( storedPipe && storedPipe.hasOwnProperty( "tables" ) ){
  		pipe.tables = storedPipe.tables;
  	}
  	
  	if ( !pipe.hasOwnProperty("sf") ){
  		if ( storedPipe && storedPipe.hasOwnProperty( "sf" ) ){
  			pipe.sf = storedPipe.sf;
  		}
  	}
  	return pipe;
  }
docs: Merge the pipe with the stored value, restoring any fields that have been filtered during outbound