Fog disables expert material settings

Aloha,

If your scene has fog, don't expect the material settings "Direct illumination multiplier" and "indirect illumination multiplier" to work.

My test-scene as rendered below, has the default material with Direct + Indirect multiplier set to ZERO.
So we should expect a completely unlit material = black

Fog enabled


Fog disabled

Regardless of fog being enabled or not shouldn't the material always render as pitch black?

The scene has linear fog. Start-end set to 500-1200m, so it is somewhere out in the distance.
Fog color is set to bright red, so it is easy to see that it is not visible in the scene.

Whats up with this?