technoweenie/faraday — pull request #187 by secretworry (2012-08-11 09:48:02+00:00)
Title: enables the multipart and other middleware to take the nested array as parameter

So that the user can pass params with the same name to the server without applying the default name convert convention( appending [] after the name).
rewrote the build_nested_query in lib/faraday/utils.rb to prevent it from converting nested array to something like [][][key] => value, and remove the precondition that the params for multipart middleware have to respond to :each_key