XPath query result order

Question

For another question I have created some XML related code that works on my development machine but not on viper codepad where I tested it before adding it to my answer.

Answer 1

I could find the following bug-report which looks like the issue: Bug 363252 - proximity position in libxml2's xmlXPathEvalExpression() reported 18 Oct 2006 and confirmed dating back since May 2006 which is before the 2.6.26 version in question.

This should have been fixed in libxml2 2.6.27.