Add failing tests for RouterService forcing unnecessary refresh (#16349)

[aaxelb]

a bug exists (#16349):

1. add a query param with default value and refreshModel: true
2. using the router service, transition between child routes
3. observe the parent model hooks re-running every time

This PR just adds failing tests for the router service's transitionTo and replaceWith.

[kategengler]

Is this still relevant?

[nickschot]

Is this still relevant?

I'd say yes, this likely relates to #19497 and the others mentioned in that thread.