test/ns5 - third_party/libxml2 - Git at Google

 <element name="foo" xmlns:rng="http://example.org/ns/1" xmlns="http://example.org/ns/1">
   <empty/>
 </element>
	<element name="foo" xmlns:rng="http://example.org/ns/1" xmlns="http://example.org/ns/1">
	<empty/>
	</element>