module ActionDispatch::Http::Parameters

def encode_params(params)

should really prevent that from happening
you'll get a weird error down the road, but our form handling
TODO: Validate that the characters are UTF-8. If they aren't, 
def encode_params(params)
  return params unless "ruby".encoding_aware?
  if params.is_a?(String)
    return params.force_encoding("UTF-8").encode!
  elsif !params.is_a?(Hash)
    return params
  end
  params.each do |k, v|
    case v
    when Hash
      encode_params(v)
    when Array
      v.map! {|el| encode_params(el) }
    else
      encode_params(v)
    end
  end
end