After you file

Doing it this way will make TurboTax produce a changed Schedule 1 that is not correct.

You should not attach the incorrect Schedule 1 to your Form 1040-X even though it is in the "new or changed" category.

If other changes also appear on Schedule 1, you will have a problem.

 

If you plan to e-File your 1040-X, TurboTax will be submitting the incorrect Schedule 1. 

I think e-File 1040-X submits everything again.