[BUG] Facebook access token isn't saved

I think I solved this by adding:

$sc_access_token = $_REQUEST['social_connect_access_token'];

And than later saving the value, when the user is created

update_user_meta($user_id,'facebook_token',$sc_access_token);

I also found a way to save the extended access token (works only with the new Facebook SDK). I’m passing the user’s Facebook ID into this function

function get_extended_token ($fb_user_id) {
    //facebook application configuration
        try{
            require_once(dirname(__FILE__) . '\lib\facebook-php\src\facebook.php' );

        }
        catch(Exception $o){
            print_r($o);
        }
    $config = array(
        'appId' => 'aaa',
        'secret' => '12345',
        'allowSignedRequest' => false // optional but should be set to false for non-canvas apps
    );

    $facebook = new Facebook($config);

    if($user_id) {
        global $current_user;
        try {
            $access_token = get_user_meta($current_user->ID,'facebook_token',true);
            $facebook->setAccessToken($access_token);
            $facebook->setExtendedAccessToken();
            $access_token = $facebook->getAccessToken();
            update_user_meta($current_user->ID,'facebook_extended_token',$access_token);
        } else {
    }
}

Not sure where this code should be put in Social Connect…