Update:
The distribution was taken so the 1099-R cannot be reissued. You should get a 2020 Form 5498-IRA (You get a 2020 form 5498 IRA only if you returned all or part of the distribution). The work around is that in completing the 1099R in Turbo Tax instead of typing in the MRD withdrawal double click in the box and get a worksheet. Fill in the withdrawal amount from the 1099R on first line. Then add the 5498-IRA info on line 2 as a negative number. You can used the text lines to write why if you want a reminder to yourself. The 5498 IRA is not a form in TurboTax.
