Please describe the problem:
we only include "id.sect1", the other part of this file, so
     I think it is not a recursion.

Steps to reproduce:
1.
=============file  test_include.xml==============
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.5CR2//EN"
	 "c:/docbook/docbook-xml/docbookx.dtd">

<book>
  <chapter>
   <title> chapter 1 </title>
       <para> chapter 1  para </para>
        <sect1 id="id.sect1"> <title> sect1 1 </title>
        <para> sect1 para </para>
         </sect1>
 </chapter>

 <chapter>
   <title> chapter 2 </title>
     <para> we only include "id.sect1", the other part of this file, so
     I think it is not a recursion.</para>

       <xi:include href="test_include.xml"
       xpointer ="id.sect1"
       xmlns:xi="http://www.w3.org/2003/XInclude"/>
</chapter>

</book>




Actual results:
 error: test_include.xml:22: element include: XInclude error : detected a recursion in t
est_include.xml

Expected results:
include ok

Does this happen every time?
YES

Other information:
check a recursion not only href but also xpointer if it existed.