NSXML XPath Bug

gistfile1.txt

Source.xml:

<?xml version="1.0" encoding="utf-8" ?>
<doc id="foo"/>



Context Node:
/doc/@*

XPath:
(ancestor-or-self::node())[1]

Should return a node-set containing only the Root (Document) node. Apparently the parentheses should cause a document order sort because they signal the end of a PathExpr?.

Saxon 6.5 and 9.5 get this right. NSXML returns a node-set containing the Context Node

This Path should be equivalent, and it works in NSXML:
    (ancestor-or-self::node()/.)[1]
    
Apparently the `/` is forcing the sort here.



Note that this is different from :
    ancestor-or-self::node()[1]

which will return a node-set containing the Context Node in all three processors