Enum abstracts are not constant when used to define other enum abstracts

[Geokureli]

The following fails exhaustiveness checks

class Test
{
	static function main()
	{
		var a:A = LAME;
		var b:B = HOT;
		
		switch (a)
		{
			case LAME | COOL:
		}
    	
		switch (b)//Unmatched patterns: B.HOT | B.NOT
		{
			case NOT | HOT:
		}
	}
}

@:enum abstract A(Int) to Int
{
	var LAME =  0;
	var COOL =  1;
}

@:enum abstract B(Int)
{
	var NOT = LAME;
	var HOT = COOL;
}

As far as I know, these abstract values are constants and var HOT = COOL; should behave the same as var HOT = 1; which is not the case.