R12.2: Auto Invoice - Freight Line - INTERFACE_LINE_ATTRIBUTE6 Populated with Price adjustment id in

R12.2
1. Created an order with Freight Charges added at the line level.
2. After running the Auto Invoice, Freight line is created in the invoice, but the INTERFACE_LINE_ATTRIBUTE6 is being populated with the PRICE_ADJUSTMENT_ID, rather than the order LINE_ID.
Is this an standard behavior? 
If not how to make the Order line id to be populated to INTERFACE_LINE_ATTRIBUTE6 and the price adjustment id to INTERFACE_LINE_ATTRIBUTE11?

Thanks,
Natarajasuthan K,