Middleware loads twice

base.rb

class Base < Scorched::Controller
  middleware << proc do
    use Rack::Session::Cookie, secret: 'mysecretcookie'
  end
 
  map pattern: '/sub', conditions: { method: 'GET' }, target: Sub
 
  # If set after the mapping, it won't work for some reason
  # middleware << proc do
  # use Rack::Session::Cookie, secret: 'mysecretcookie'
  # end
end

sub.rb

class Sub < ApiV1
  get '/hello' do
    'world'
  end
end