AFNetworking/AFIncrementalStore — pull request #165 by davidfilip (2013-02-26 09:23:06+00:00)
Title: Put _id in candidateKeys

There are some databases (MongoDB) that use _id as a default identifier. When you have just simple REST server that display db request and you are using sample code from examples your app will crash without much information.

Putting _id into candidateKeys will solve this beginner problem and I also think it fits those keys nicely.