Description:
------------
offsetGet() don't called if ArrayObject uses in foreach(). It directly returns value from private storge of ArrayObject.

Test script:
---------------
class Some extends ArrayObject {
    function __construct(){
        parent::__construct(array("key"=>"storged value"),ArrayObject::ARRAY_AS_PROPS);
    }

    function offsetGet($index){
        return "offsetGet called";
    }
}

$obj=new Some();
print $obj->key."<br>";
foreach($obj as $key=>$val){
    print $val."<br>";
}


Expected result:
----------------
offsetGet called
storged value

Actual result:
--------------
offsetGet called
offsetGet called