How to make "remember me" work if session expires when browser is closed?

I set sessions to expire when browser closes in main config.yml:

framework:
    session:
        default_locale: %locale%
        lifetime:       0
        auto_start:     true

Then I set "remember me" for login page as described in documentation and I'm getting logged out (when I restart browser) even if I check "remember me".

How to set a Symfony2 application to expire cookies when user closes browser, but persist them if one chooses to (by checking "remember me") upon login?

I'm using Symfony2-beta5 RC1 RC3.