Accrual instead of Charge account on Shop Floor Destination type PO

Hello,

When an invoice is entered and create accounting is ran for a PO with a destination type of "Shop Floor", the accrual account is being debited instead of the charge account from the PO.  I was wondering why this is happening and where this "rule" is being defined.  Is there a way I can change this to use the charge account instead?

Thanks,
Matt