title: Router RedirectTo default does not fire event NavigationEnd
body: <p>I am using Angular v6.1.0 and. My routing file here:</p>
  
  <pre><code>const routes: Routes = [
    {
      path: '', component: DashboardComponent, children: [
        { path: '', redirectTo: 'activity', pathMatch: 'full' },
        { path: 'activity', component: ActivityComponent },
        { path: 'recent-activity', component: RecentActivityComponent },
        { path: 'notification', component: NotificationComponent }
      ]
    },
  
  ];
  </code></pre>
  
  <p>And here is my code to subscribe navigation events:</p>
  
  <pre><code>router.events.subscribe((event: Event) =&gt; {
        if (event instanceof NavigationStart) {
          // Do something here
        } else if (event instanceof NavigationEnd) {
          // Do something here
        }
      });
  </code></pre>
  
  <p>When I use router.navigation the NavigationEnd is fired.<br>
  But If I go to <strong>/dashboard</strong> router and it will redirect to <strong>/dashboard/activity</strong> in above routing file, the event does not fired.
  <br><br>
  <strong>UPDATE</strong>
  Here is my example on <a href="https://stackblitz.com/edit/angular-router-basic-example-fm4n71" rel="noreferrer">StackBlitz</a> <br>
  Just enter the domain without any path, the console only log '/' when redirect to login (I prefer to log '/login')</p>