[HOU-1468] reflection wrong when decoupled from refraction

[LeoYfver]

this can just be me not understanding shaders but when i untoggle "lock fresnel IOR to refraction IOR" under the reflection tab and the change the IOR in the refraction to 1 for example(even when the color is black) it changes the strength of the reflection which in my mind it shouldn't. Is this a bug or a feature :P?

Regards Alexis