class I18n::Railtie

def self.init_fallbacks(fallbacks)
  include_fallbacks_module
  args = \
    case fallbacks
    when ActiveSupport::OrderedOptions
      [*(fallbacks[:defaults] || []) << fallbacks[:map]].compact
    when Hash, Array
      Array.wrap(fallbacks)
    else # TrueClass
      [I18n.default_locale]
    end
  I18n.fallbacks = I18n::Locale::Fallbacks.new(*args)
end