Basecolor not working after blending 'Default lit' and 'Unlit' in 'From Material Expression' shading mode

Basecolor and other PBR properties like Roughness will not work after blending ‘Default lit’ and ‘Unlit’ in ‘From Material Expression’ shading model.

Looks like any shading model when blends with ‘Unlit’ will have all their PBR properties disabled, except Emissive.

Is this intended?