Strange results from Display Filters>Clip Warning

[Ofnuts]

I confirm that the Clip Warning only works with floating point modes. As far as understand it, Clip Warning is about actual pixel values, whatever the color profile applied. "Bogus color" is pixels values that aren't valid floating point numbers (this can happen in some cases, for instance if you have a layer in "Divide" mode with color with a channel to 0 (black, or pure R,G,B)).