Given that April 15, 2024 has already passed, I don't think the distribution can be undone. However, because there was no excess contribution, getting TurboTax to properly prepare the amendment might not be possible without overrides. Amending will require reducing the amount on Form 8889 line 9 by the amount of contribution returned and adding the amount returned as other income on Schedule 1 line 8f.
The alternative would be to do nothing to change the 2023 tax return and file your 2024 tax return with an explanation statement, treating the distribution as a Normal Distribution (code 1) instead of as return of contribution (code 2). This might be the more correct approach since the tax code technically permits a return before the due date of the tax return of only actual excess contributions.
