price correction invoice paid when the original invoice still on Qty Rec hold

Hi,

we have a PO with qty=1 and price=91

User has created a PO matched invoice for qty=1 and price=50, which went on hold "Qty Rec" as PO is not receipted yet.

and then a price-correction invoice created for the original invoice for price=41.

second invoice was validated successfully and got paid even though the original invoice is still on hold.

user has raised issue that why system allowed payment for the price-correction invoice when the related invoice is still on hold? any ideas?

Rgds,

-Kamal