libxml 2.9.2 ID conflicts

id_unbind_test.pl

#!/usr/perl/bin -w
use strict;
use warnings;

use XML::LibXML;

my $xml_content = <<EOL;
<?xml version="1.0" encoding="UTF-8"?>
  <a xml:id="a">
    <b xml:id="b"></b>
  </a>
EOL

my $dom = XML::LibXML->load_xml(string => $xml_content, no_blanks => 1);

my $a = $dom->documentElement;
my $b = $a->firstChild;

$b->unbindNode();

my $c = $dom->createElement("c");
$c->setAttributeNS('http://www.w3.org/XML/1998/namespace', 'id', "b");
$a->appendChild($c);

print $dom->toString(1),"\n";

Oh, @dginev, so you get a notice! Ha!

For some reason it didn't even send me a notice ... Thanks for that, removeAttribute should do the trick, we just need to hunt down all positions where we unbind nodes (that we don't reuse later).