Requester on PO gets updated but in Requisition its the previous value

Summary: After a Requisition is approved and PO is created from it, through a change order the Requester name on PO was changed. Now the Original requester (present on the Requisition line), is unable to do a change order on PO as the requester was change don the PO.

In this case how can we change the Requester on the Requisition?

If we use the Update preparer and Requester job, then it will replace the name for both Preparer and Requester for all relevant Requisition and POs which we don't want.

Reassign option in Requisitions will only allow us to change the Entered by/Preparer and not the Requester.