Should getSymbolsByUDA work with member variables?

[cc]

This compiles:

class Foo {
	int x;
	@(1) void y() {}
	this() {
		static foreach (idx, field; getSymbolsByUDA!(Foo, 1)) {
		}
	}
}

This does not:

class Foo {
	@(1) int x;
	void y() {}
	this() {
		static foreach (idx, field; getSymbolsByUDA!(Foo, 1)) {
		}
	}
}

Error: value of `this` is not known at compile time

Is there an equivalent for getSymbolsByUDA for member variables, 
or is this a bug?