Unposted GL entry

Accounts Payable deleted a PO from a batch and some how ended up creating a new voucher batch with nothing in it on the AP side, but there is an unposted entry in our GL for freight.  I know I can probably just delete the unposted lines in the GL, but are there other files I need to check first to make sure there is nothing somewhere else that I'm not aware of?  I check the F0411 and there was nothing there for that batch.