Explicitly calling Session::create() alternately re-creates and destroys session

[edam]

With a clean installation of SVN head's trunk and the following code in application/controllers/welcome.php:

class Welcome_Controller extends Controller {
        public function __construct() {
                $this->session = new Session;
        }
        public function index() {
                $this->session->create();
        }
}

and application/config/session.php's driver set to "database", the following behaviour can be observed:

First request:

• a new session is created in the database's session table
• a cookie is returned to the browser with the correct session id

Second request:

• the previous session's cookie is destroyed
• a new session is NOT created in the database
• a new cookie is NOT given to the browser
• At this point there is no session!

Further requests produce exactly the same results as the first and second alternately.

[Shadowhand]

Fixed in r2994.

[Shadowhand]

A further fix to regenerate() was applied in r3079.