cannot select python version during configure of Paraview 5.8

I have multiple versions of python installed on my Mac via Macports. When running ccmake with Parview 5.8, my selections for:
Are all ignored. I am trying to select python-3.6 (/opt/local/bin/python3.6), but python-3.8 is always populated after running configure. It seems like there is a bug in the configure procedures. Any ideas?

I found resolution in 19926: