documentcloud/backbone — pull request #2602 by caseywebdev (2013-06-10 14:34:52+00:00)
Title: Ensure Collection#get does not return a false negative during the change:attr event

As explained by @jrreed, it's possible for `collection.get(model)` to incorrectly return `undefined` while the model's id is being set (see added test). I'm fairly certain this won't break any existing code, but please take a look before I merge.