Receive PO that is in status IN PROCESS

HI

We have a PO which was approved once then user has cancelled one line then amend the  another line and sent the PO for approval.

As a result there PO amount has remained the same.

Now even the PO header status is still in process PO can be received by store officer.

Please confirm if this is standard functionality.

I found a note stating that the If Apporval status is YES at PO shipments and canceleld flag is NO, this is standard functionality, but i am not satisfied with the explanation as  we do not have other POs with the same issue  (PO 's thats appoved once and resent for approval)