brianhempel/mongo_session_store — pull request #26 by galfert (2014-03-06 13:36:32+00:00)
Title: Provide overwrite option when overwriting _id field in MongoidStore

When using the MongoidStore there is a warning in the logs:

> WARN -- : Overwriting existing field _id in class ActionDispatch::Session::MongoidStore::Session.

Mongoid has an `overwrite` option to omit the warning when overwriting existing fields.