Router service transitionTo cannot be aborted by current route

When calling `router.transitionTo('someRoute')` in a component where router is the router service, the `willTransition` will get called for the current route. However, aborting the transition parameter of this hook will not abort the transition. The router will still transition to the specified route... Is the transition parameter another transition or?

**EDIT**
The transition can be aborted when calling `router._router.transitionTo`