clojure.browser.repl breaks the browser's hashchange event

Here is the relevant code:

``` Clojure
(def history (History.))

(events/listen history EventType/NAVIGATE
  (fn [e] (.log js/console "Route changed!")))

(.setEnabled history true)
```

With `clojure.browser.repl` required, this callback does not fire, but when I comment it out, all works swimmingly.

I have no idea why it would conflict with the hashchange event. Any ideas?
