How are Adjustment Vouchers processed with PO and Assets? Expected Outcomes?

We are on version 9.2 Image 29, PeopleTools 8.56. I could not find any other community posts that answered my questions.

I am needing some help understanding the expected outcome when processing an adjustment voucher by pulling in the voucher that has already paid against both a PO line without assets as well as when it's paid against a PO line with assets. Currently we do not use adjustment vouchers and are testing different scenarios to see how they work and the impact in Procurement in Asset Management.

From my testing I have encountered the below outcomes:

• If an adjustment voucher is created by pulling in the paid voucher tied to a PO line