Async operations on HMR fails to update the view

When doing async operations (Observable, setTimeout, ...) in a component init, the code executes as expected but the view doesn't get updated.

Reloading the component by changing route works as expected though.

Removing the `this.appRef.tick()` call in `AppModule#hmrOnInit()` seems to fix that, and so does making said call in a `setTimeout()`.