[2.0.13] can't force ghost rail over rail

[joshinils]

I tried to place a rail ramp over a straight rail, but it hides my cursor ghost in favor of the rail planner arrow.

I can force ghost non-rail related item over rails.

(If this is not a "bug" I'd like it to be a feature to be able to force ghost rail things over rail things, regular ghosting may not be affected in that case, at least make me force ghost)