title: Xamarin Forms Prism child Tabbed page OnNavigatingTo not firing?
body: <p>When I navigate within tabbed pages, OnNavigatingTo does not fire. There are several different threads around this subject but I don't see that there is a solution? My environment is a Main Page (login) > MasterDetails Page > Tabbed Page > Child Content Page.</p>
  
  <pre><code>_navigationService.NavigateAsync("MasterDetail/Navigation/DashboardPage/Child1TabPage");
  
  &lt;TabbedPage.Children&gt;
      &lt;views:Child1TabPage/&gt;
      &lt;views:Child2TabPage/&gt;
  &lt;/TabbedPage.Children&gt;  
  </code></pre>
  
  <p>I've tried using an additional navigation page either in the MainPage, or on the Dashboard page with useModalNavigation on or off but that doesn't work either. Like so.</p>
  
  <pre><code>navigationService.NavigateAsync("MasterDetail/Navigation/DashboardPage/NavigationTabbed/Child1TabPage", null, false, true);
  </code></pre>
  
  <p>or on the tabb DashboardPage like so</p>
  
  <pre><code>navigationService.NavigateAsync("NavigationTabbed/Child1TabPage", null, false, true);
  </code></pre>
  
  <p>Any ideas?</p>