So it is April 18 (but CA returns are not due until May 17 this year...)
Turbo Online still says a fix will be out March 12. I just went through the whole data entry and attempted filing process again, and it still includes the forbidden Part III.
But I dug up the CA Instructions
https://www.ftb.ca.gov/forms/2020/2020-3853-draft.pdf
and it makes clear that I'm not even required to file, my income is under the threshold.
I wonder why Intuit drug me through this whole fiasco... They had all the numbers!
So I guess I'll just stop right here. At least they did my Federal return...
