PO changes after Invoice Match

Hi

Can the experts help in providing knowledge on this .

We have PO 3 way match created ,before even receipts raised ,Invoice is created and matched to PO . Goods are received days later and receipt created.  We dont see PO receipt creation changes flowing on to AP invoice until we go select invoice line and hit match.

Should system automatically cascade any changes made to PO after invoice matched ? or any processes to be run to trigger changes

Thanks