I use latest stable version of PHPMyAdmin with signon authentification and PHPMyAdmin makes incorrect redirect after timeout to my login page. When I click something after timeout, in Firebug I see:
GET sql.php 302 Moved Temporarily
Redirect to myloginpage.php is correct, but everything this happens inside of AJAX callback of PHPMyAdmin only, thus this does not redirects frontend of PHPMyAdmin actually. Instead of it frontend of PHPMyAdmin displays "Loading" message only forever.