Two different contract same PO

Requisition YYY is raised for 8 lines with two different Contract References. The first 4 lines are contract items from Contract Reference CC12 and the last 4 lines are from Contract Reference CC13. The PDF for Purchase Order 125059 shows that this order is linked to Contract Reference CC12 but there should have been 2 separate orders raised as the lines were selected from 2 different BPA'S.

Thanks