How are children Controls handled in relation to _has_point implementations?

[Spartan322]

I'm not certain what is expected by reading the documentation, _gui_input does describe some of parental properties that effect children, however _has_point does not mention this, perusing viewport.cpp and control.cpp and especially Viewport::gui_find_control (which seems to always be responsible for pointer interactions) however it seems to me like it should have an effect unless I'm misunderstanding something.