preserveWhiteSpace properties does'nt wokr

Hi
I try to use preserveWhiteSpace property of domDocument class:
<?php
$domdocument=new domDocument('1.0');
$xml="<?xml version='1.0'?>
<Root>
   <Child1/>
   <Child2/>
</Root>
";
$domdocument->preserveWhiteSpace=false;
$domdocument->loadXML($xml);
echo $domdocument->documentElement->firstChild->nodeName . "\n";
?>
In August all works correctly and script print:
Child1

In September source code in CVS for property preserveWhiteSpace
is changed and script now print
#text
(preserveWhiteSpace does not work).

Can someone explain me why?

I see at source code and find that all looks correct exept for code:
1267c1092
<     ctxt->loadsubset = (resolve_externals * XML_COMPLETE_ATTRS);
---
 >     ctxt->loadsubset = resolve_externals;
1268a1094,1095
 >     if (ctxt->keepBlanks == 0)
 > 		ctxt->sax->ignorableWhitespace = ignorableWhitespace;

In new code strings:
 >     if (ctxt->keepBlanks == 0)
 > 		ctxt->sax->ignorableWhitespace = ignorableWhitespace;
are missed.

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