California 540NR allows different filing status from federal given spouse was NR for the whole year. Why doesn't the software support this?

California 540NR allows different filing status from federal given spouse was NR for the whole year. 

From the 

Exception: If you file a joint tax return for federal purposes, you may file separately for California if either spouse was: " An active member of the United States armed forces or any auxiliary military branch during 2018. " A nonresident for the entire year and had no income from California sources during 2018.

Why doesn't the software support this exception?