[PHPTAL] Nested repeat

[Tomas Sirny]

Hello, I have one problem with using repeat in PHPTAL. I'm trying to
do something like this

<ul>
    <li>one</li>
    <ul>
        <li>first</li>
        <li>second</li>
    </ul>
    <li>two</li>
    <ul>
        <li>1</li>
        <li>2</li>
    </ul>
</ul>

but it ends with this:

<ul>
    <li>one</li>
    <li>two</li>
    <ul>
        <li>1</li>
        <li>2</li>
    </ul>
</ul>

Simply, it seems like only the last nested repeat has been executed
and it doesn't depend on number of first-level iterations, it's always
the last.

My code (test.html):
<ul >
    <li tal:repeat="item archive">
        <a tal:attributes="href item/href" tal:content="item/text">Link</a>
    </li>
    <ul>
        <li tal:repeat="subitem item/subitem">
            <a tal:attributes="href subitem/href"
tal:content="subitem/text">Sublink</a>
        </li>
    </ul>
</ul>

and

<?php
require_once 'PHPTAL.php';

class A {
    public $href = "dfas";
    public $text = "kkjkj";
}

class B {
    public $text = "erer";
    public $href = "tytyty";
    public $subitem;
}

$b1 = new B();
$b1->subitem = array(new A(), new A());
$b2 = new B();
$b2->subitem = array(new A(), new A());
$b3 = new B();
$b3->subitem = array(new A(), new A());

$menu = file_get_contents('test.html');
$template = new PHPTAL();
$template->setSource($menu);
$template->archive = array($b1,$b2,$b3);

try {
    echo $template->execute();
}
catch (Exception $e){
    echo $e;
}

?>

Does someone see bug in my code? I have found in mailing list very
similar code as an advice.

Thanks for any help.
Tomas