title: User is logged in although no users are in database and app was restarted
body: <p>My MVC4 application was made according to template shipped with Visual Studio 2010 and uses <code>SimpleMembership</code>.</p>
  
  <p>Some minutes ago I deleted all the data from all the tables in database and restarted IIS with an iisreset command. The only thing left from previous life is a couple of cookies (<code>.ASPXAUTH</code> and <code>__RequestVerificationToken_L3J1bmV0c29mdC9BdXRoVGVzdA2</code>) in Opera browser (I didn't log out before cleanup).</p>
  
  <p>Now when I try to load Home/Index, it shows me <code>Request.IsAuthenticated == true</code> and <code>User.Identity.Name</code> is available - it is the name of the last user.</p>
  
  <p>The same happens after I rebuild the application.</p>
  
  <p>How???!!!</p>