Legacy mode question: bug or not?

[cecofuli]

Hello, as we can read here:

https://forum.corona-renderer.com/index.php/topic,4542.0.html

after A7, we have a new Energy conservation mode: automatically it dims diffuse color as reflection is increased.
In short:

Energy conservation mode OFF: parallel object faces = brighter shader (old mode)--- > Legacy mode ON because the old scene will not break.
Energy conservation mode ON: parallel object faces = darker shader -->  Legacy mode OFF

You can see in the Maru answer.

https://forum.corona-renderer.com/index.php/topic,4542.msg31324.html#msg31324

or in the Stan_Booth answer

https://forum.corona-renderer.com/index.php/topic,4542.msg31355.html#msg31355


When I load a shader created in Corona , I have the Legacy mode available, and it's turned ON.
Then, I try to turn it OFF. I expected a darker version, to follow the  Energy conservation mode. But, I have the exactly opposite image.
Then, I create a new material with the same properties, with v1.5. The Legacy mode isn't available, and I have the same result with the old shader, with Legacy mode OFF...








(*) If I load a shader from 1.1.1, the Legacy mode is available. But, if I change Legacy ON or OFF, the rendering is the same.

(*) If I load a shader from 1.3, the Legacy mode isn't available, and it's turned OFF...
Again, with Legacy mode ON or OFF nothing changes...

I'm a little bit confused...