Copy Voucher with PO - how can the PO Distribution Line be updated?

A new PO Distribution Line is created each time a PO is rolled over into a new fiscal year.

In the new fiscal year, Copy Voucher copies the prior fiscal year's PO Distribution Line.

The PO Distribution Line is not visible or accessible in vouchers and therefore cannot be updated. As a result, current year voucher activity is not recorded to the current year PO Distribution Line.

Budget Checking prevents vouchers from exceeding PO Remaining Amount, thankfully.

Matching does not recognize the Distribution Line is closed and returns a status of Matched. We have not identified a match rule for this scenario.