Cancelling Distributions on A/P Invoices

For simple, manual, non-PO invoices, is it true that distributions can be reversed up until the invoice has been paid?

And if true, do any settings or options that control this or is it built-in?  I assume it's built-in.


I've heard some users assert that the invoice distributions should not be reversable once the original distributions have been sent to the G/L and posted.

But my brief testing indicates that line distributions can be reversed so long as the invoice has not yet been paid -- regardless of whether the original invoice distributions have been transferred to & posted in the G/L.