How to source updated Tax Code on Make Copy Transactions?

We seem to run into an issue periodically where someone will create a transaction for a client, and at some point down the line the client's tax configuration will change, and then at some point after that the old transaction will be copied but for whatever reason NetSuite doesn't re-source the new tax codes onto the copy. Is there any way of forcing NetSuite to re-source the tax codes, perhaps via SuiteScript? We see the same thing happen if someone creates a quote, the client's tax configuration changes, and then the quote is transformed into a sales order. The tax