Description:
------------
calling a new client while executing a registered server function results a 'No such operation' message.

Reproduce code:
---------------
<?

$server = new SoapServer(NULL,array('uri' => "soapserver.php5"));
$server->addFunction('submitTEST');
$server->handle();

$method="somemethod";
$params=array("test1"=>"test1");

function submitTEST ($method,$params)
{
        $client = new SoapClient('http://some.far.wsdl');
        $submit = $client->__soapCall($method, $params);
}
?>

Expected result:
----------------
Expected to see the result of the existing function on the external soap server.


Actual result:
--------------
Uncaught SoapFault exception: [Server.userException] No such operation 'somemethod'