When loading the diff viewer with an anchor, the "#" in the URL would be

stripped away, resulting in an incorrect, often broken URL. This was due

to Backbone.history.start() trying to convert it into a

pushState-compatible URL, with the assumption that it was supposed to be

a page in the URL.
We now save the hash, unset it, and then re-set it after

Backbone.history.start().

Navigated to an anchor and reloaded the page. Saw that the URL remained

correct, instead of turning into a broken URL.