typeof.stringof wrong type

[Eugene Wissner via Digitalmars-d-learn]

I have a problem, that .stringof doesn't return what I'm 
expecting. Consider the following:

template A(string T)
{
	enum A : bool
	{
		yes = true,
	}
}

void main()
{
	A!"asdf" a1;
	typeof(a1) a2;
	mixin(typeof(a1).stringof ~ " a3;");
}

I get an error: some.d-mixin-13|13 error| Error: template 
some.A(string T) is used as a type

Why the second line in main() works but the third one not? 
typeof(a1).stringof seems to ignore the string template parameter 
T.
pragma(msg, typeof(a1).stringof) would  return just "A".

Is it a bug?