Work Order Completion Status Issue

We are having an issue with work orders that have been completed for a quantity higher than the requested amount having the incorrect status.  These are stand-alone work orders - not tied to a sales order.  We have the processing options of P31114 defined to set the work order status to 82 upon completion.  The status is set to 80 for partial completions.  For several work orders that have been completed for a higher quantity than requested, the work order status is 80 instead of 82.  In 1 case only, we can see where this was caused by a negative