XPath search with attribute fails after item with xmlns attribute

[AlexF]

When searching using an XPath with a, @attribute or @attribute='xxx' expression, fails to find elements which are beneath a parent with an xmlns attribute. See attached test case; removing the "xmlns" attribute causes all tests to pass.

I don't understand xml namespaces in XPath well enough to understand whether one or other is correct, but I did think that namespaces applied to elements, not attributes. If this as per-spec, sorry for the noise.

This is a change between version 3.1.3 (as shipped with ruby-1.8.4) where this wasn't a problem (all would pass), and 3.1.6 (shipped with 1.8.6).

Similar to ticket #39?

[AlexF]

Test case for XMLNS + XPath/@attribute expression

[rubys]

Dupe of ticket #102