Criteria::IN выбирает только уникальные значения, а надо что бы все

$this->menu = MenuPeer::doSelect(new Criteria());
 if (isset($_COOKIE["sfCart"])){
 $arr = explode(":", $_COOKIE["sfCart"]);
}

print_r ($arr);
$cr = new Criteria();
$cr->add(PhotosPeer::ID, $arr, Criteria::IN);
$this->items = PhotosPeer::doSelect($cr);
print_r ($this->items);

[b]arr[/b]

(
    [0] => 1
    [1] => 1
)

[b]this->items

[/b]Array
(
    [0] => Photos Object
        (
            [id:protected] => 1
            [part_id:protected] => 1
            [author_id:protected] => 
            [meta_id:protected] => 
            [photo_s:protected] => b035fb72a38c7f4d7c7ca5b7b269d448.jpg
            [photo_b:protected] => 0b4b773bdd4d77e3b54e21698f9b1957.jpg
            [size:protected] => 
            [price:protected] => 1500
            [ord:protected] => 1
            [is_active:protected] => 1
            [created_at:protected] => 2010-06-17 19:17:00
            [aParts:protected] => 
            [aAuthors:protected] => 
            [aMeta:protected] => 
            [alreadyInSave:protected] => 
            [alreadyInValidation:protected] => 
            [validationFailures:protected] => Array
                (
                )

            [_new:private] => 
            [_deleted:private] => 
            [modifiedColumns:protected] => Array
                (
                )

        )

)