Is "Indirect lighting saturation" not working?

I’m trying to light an interior scene that has lots of sunlight coming through the windows. I want a bit of an archviz look, but it’s a fantasy scene, so I just want the bounced lighting to really fill up the scene and make things warm.

The problem I’ve run into is that my materials have a lot of color in the basecolor/albedo, and when I crank up the Indirect Lighting Intensity of the directional light it causes my scene to be flooded with more bounced color than I’d prefer. My assumption was that the “Indirect Lighting Saturation” setting in the directional light would allow me to fine tune how much the basecolor bleed would affect my indirect lighting, which would be perfect for me, but it seems to do nothing.

Am I misunderstanding what this setting does, or is it just broken? I’ve tried both in 4.10 and 4.11 preview 4.