I'm guessing I could:
a) do this section twice
b) do section once: add refund from original 2018 + refund from amended 2018, and only use amended number for "Total of all your payments and withholding"
c) do section once: only use amended 2018 refund and use amended number for "Total of all your payments and withholding"
This is for the Federal section, but seems to be talking about my state.
