onStartTag for root node in std.xml

[Heromyth]

In the test code, the onStartTag will not be called for the root node "set".

The onEndTag is OK, and the onStartTag is OK for sub nodes.

Is this a bug, or just it is? Can anybody confirm it?
Thanks.

// test.d
module main;

import std.string;
import std.stdio;
import std.xml;

int main(string[] argv)
{
	string s = r"<?xml version='1.0'?>
		<set>
		<one>A</one>
		<!-- comment -->
		<two>B</two>
		</set>";

	string tempStr;

	auto xml = new DocumentParser(s);

	xml.onStartTag["set"] = (ElementParser xml)
	{
		tempStr = "start=>" ~  xml.tag.name;
		writefln(tempStr);
		xml.parse();
	};

	xml.onEndTag["set"] = (in Element e)
	{
		tempStr = "end=>" ~ e.tag.name;
		writefln(tempStr);
	};

    xml.parse();

   return 0;
}