Document flow showing quotation as being processed

Hi

i have one scenario where the quotation is ordered for 10 qty and the subsequent sales order has been split in to 2 line items for same material for 5 & 5 quantities, and here only one line item with 5 quantities has been delivered.

when we go for document flow, the quotation is still showing as open or being processed, so my requirement is that when all the 10 quantities has been copied to sales order why still the quotation document  is showing as being processed in flow.

is there any importance of spliting the same material in order for 2 line items, please suggest

Naveen