title: How to reload current route guards?
body: <p>Let's say I have a route that has a guard <code>AdminGuard</code>, which lets me in only when I'm an admin.</p>
  
  <p>But when I'm on that page and I click <code>Logout</code> the state is propagated in all the app via Observables, but I still am in a route, which I am not supposed to be in, since I've been logged out.</p>
  
  <p>How to "reactivate" curent route guards?</p>