Querying in the following...
<div xmlns="http://www.w3.org/1999/xhtml" id="test">
<span id="A"></span>
<div>
<span id="B">
<span id="C"></span>
</span>
</div>
<span id="D"></span>
</div>
Query "preceding::xhtml:span" from span#D
Result: span#A span#B span#C
Expected: span#A span#B span#C
***SUCCESS***