rails/rails — pull request #18006 by sikachu (2014-12-12 11:52:58+00:00)
Title: Add AC::Parameters#to_unsafe_h

As suggested in #16299([1]), this method should be a new public API for retrieving unfiltered parameters from `ActionController::Parameters` object, given that `Parameters#to_hash` will no longer work in Rails 5.0+ as we stop inheriting `Parameters` from `Hash`.

[1]: https://github.com/rails/rails/pull/16299#issuecomment-50220919