Duplicate invoice for third-party IR order
The order items are 3rd party, IR, nonstock materials.
The first invoice was created overnight on 04/28/2007 and that's before the invoice from the vendor was received (05/07/2007).
The receive of the vendor's invoice triggered the second invoice on 05/08/2007.
Both invoices are valid and identical, except for the SKU quantity that was zero.