Test case for #112

gistfile1.php

$xml = '<?xml version="1.0"?>
<root>
<Document name="A" title="A" >
  	<Document name="B" title="B" >
			<Document name="C" title="C" >
				<Section title="1" position="" >
                                 Section ABDFD
  </Section>
                        </Document>
                </Document>
</Document>
</root>';
$qp = qp($xml, 'root');
foreach ($qp->children('Document') as $ele) {
  foreach ($ele->children('Section') as $foo) {
    throw \Exception("FAIL. Should not get here.");
  }
}
print "YAY!";
exit;