Does XML::LibXML::Node replaceNode() replace Perl instances of the replaced node

Question

... so after I replace a with b, all previous references to a now point to b?

Answer 1

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

use XML::LibXML;

my $dom = 'XML::LibXML'->load_xml(string => '<r><p><c/></p></r>');
my ($n1) = $dom->findnodes('/r/p/c');
my ($n2) = $dom->findnodes('/r/p/c');
$n1->replaceNode('XML::LibXML::Element'->new('n'));
print $dom;
print $n1, $n2;

Output:

<?xml version="1.0"?>
<r><p><n/></p></r>
<c/><c/>