Bug #644 for XML-XPath:

According to the XML::XPath manpage, findvalue returns an XML::XPath::Literal or other object, but I've found that it sometimes returns a plain string. For instance $obj->findvalue('//myname') will return a string, but $obj->findvalue('normalize-space(//myname)') will return a Literal. This means that in some cases we can call string_value on the returned object, and sometimes we can't. I think findvalue should always return an object and never a plain string, and getNodeText (which returns plain strings) should be allowed on all objects that findvalue is valid on, like XML::XPath::Node::Element objects for instance.... Or, make findvalue always return plain strings. The point is that what it returns should be consistent