powmedia/backbone-deep-model — pull request #25 by evadnoob (2012-10-04 17:22:49+00:00)
Title: undefined in setNested resulting from a recent change in backbone master.

A recent change https://github.com/tgriesser/backbone/commit/71b6404d73f506627f0cc516177e39cc8c9947d7 in backbone allows undefined to get into this method.