Reference unbindings behaves differently for reference template type

[Zettelkasten]

If you have some template function

func foo[T](x: Ref[T]) {
 !y: T = !x;
}

you would expect !x to always take Ref[T] and make T from it.
But this doesn't work currently if T itself is a reference: e.g. if T = Ref[Int], then !x would give you Ref[Int] (instead you'd like to get Int).