Overriding final functions

[Ary Manzana]

The following code:

class X {
	
	public final void bla() {
	}
	
}

class Y : X {
	
	public override void bla() {
	}
	
}

gives:

main.d(10): function main.Y.bla function bla does not override any

I'd expect the error to be:

main.d(10): function main.Y.bla cannot override final function main.X.bla

(which I do get if I put the "final" keyword in bla on class Y)

Am I misunderstanding something or this is a bug?