Nightvision only in darkness

[karak]

Hello, I´m attempting to make character that have nightvision only when he needs it e.g. only in total darkness, but I Run into an issue. When he enter darkness screen starts flashing. I guess that is because nightvision counts as light (who would thought that). Is there any way how to make it react only to natural light?

inst:ListenForEvent("enterdark", 
        function() 
        GetClock():SetNightVision(true)
       	GetWorld().components.colourcubemanager:SetOverrideColourCube("images/colour_cubes/mole_vision_on_cc.tex", 2)
        end)

    	inst:ListenForEvent("enterlight", 
             function() 
             GetClock():SetNightVision(false)
             GetWorld().components.colourcubemanager:SetOverrideColourCube(nil, .5)
        end)