Generate PO from requisition

Hi

Trying to understand if we have a bug or not in 9.1

1. OR created for Non Stock item
2. OR approved and displayed in P43060 Generate PO application
3. OR quantity is 10, however release quantity is increased to 20
4. OP Order generated, however two lines appear. First line matches that of the OR i.e. 10 at XX price. Second line is for the additional 10 but at zero price

I'm expecting to have just one line for the 20 at the XX price. Tested in 9.2.and this works as expected. Am I missing something in the set up?

Regards