Reconciliation reference is empty for Accrual Clearing journal lines

Summary:

We have implemented recently the Clear Accrual Clearing functionality, as advised by Oracle in an SR, to close decimal differences that remain in the accrual account after matching the receipt with the invoice.
The purpose of running the Clear accrual clearing is to be able to reconcile in GL the accrual account which currently is not possible because of the small decimal differences.
The accrual clearing process is closing the small differences, which is fine, but we also need to add Reconciliation reference as PO number for the accrual account - event Accrual Clearing, as it is added currently for the rest of the events where the accrual account is involved, like the Expense Accrual for the Receiving Event.