emberjs/ember.js — pull request #2855 by machty (2013-06-19 02:31:59+00:00)
Title: In mid-transition, `modelFor` accepts both camelCase and underscore naming

With facelift router, `modelFor` maintains backwards compatibility
to return a resolved model on a parent route even in mid-transition.
This PR fixes a bug where only the underscore version of a route name
yielded a value in mid transition.