ic_tran_pnd table when split orders in OM

Hi People, When I assign a lot to an Order, a row is created in ic_tran_pnd with doc_type = 'OMSO'. This row has line_id = line_id of the sales order line. The question is: if the line is splitted in OM (and the lot was not shipped), what happens with the row in ic_tran_pnd? Oracle creates a new line 'OMSO', or update line_id with the line_id created by the split?
Thanks a lot