illuminated object reflections / GI

I am using a self illuminated object as a light (vraymtlwrapper with generate GI = 3).

I don’t want this object visible to camera, so I uncheck visible to camera in object properties.

So far so good. It works well.

But I also don’t want the object to reflect, so I uncheck visible to reflection/refraction.
After rendering, this object now stops casting GI (light).

It seems that the visible to reflection/refraction button in object properties also turns off GI (or light) casting for that object.

Is this a bug???

I want this object to light the scene without being visible to camera or reflections.

Thanks.

Try to put an output map in difusse slot of the base material with rgb level 3.