documentcloud/backbone — comment on commit 67f689df9c460c10c61d7a8722f303eb61d4b642
File: backbone.js line 488
By tbranyen:

I agree this should be changed to `void 0` only to remain consistent with the rest of the Backbone.js source code. Reassignment isn't a concern of Backbone. You could technically reassign any number of global objects, but expect weirdness.