Destroy session when redirect

I wrote simple session handler for storing sessions to database.

In bootstrap.php I have:

<?php
/* @var $session \Nette\Http\Session */
$session = $container->getService('session');
$session->setHandler(new \Soundake\SessionHandler());
$session->start();
?>

This is ok, session is started, created and stay active. Login is working, transfer between pages is working too.

But, when I use anywhere in presenter $this->redirect, than “destroy session” is executed and it is created new session and I loose old one.

Do you know, where is the problem?

Thx a lot.