Infinite recursion with willTransition hook and queryParams

I have a route with a query parameter with `refreshModel` set to true. The route has a `willTransition` hook, which prompts the user to confirm that they want to navigate away from the route. If the user presses cancel, the transition is aborted using `transition.abort()`. This combination causes the router to enter infinite recursion where the user is presented with the confirm dialog over and over again until they press ok.

JSbin: http://jsbin.com/vuzaxe/1
Steps to reproduce: click one of the colors, press the cancel button on the confirmation dialog