Load Devise ORM after initialization.

lib/devise/rails.rb

@@ -8,5 +8,9 @@ module Devise
     config.middleware.use Warden::Manager do |config|
       Devise.configure_warden(config)
     end
+
+    config.after_initialize do
+      require "devise/orm/#{Devise.orm}"
+    end
   end
 end

lib/devise/rails/routes.rb

@@ -3,8 +3,6 @@ module ActionDispatch::Routing
     # Ensure Devise modules are included only after loading routes, because we
     # need devise_for mappings already declared to create magic filters and
     # helpers.
-    #
-    # TODO Hook into initializers workflow
     def finalize_with_devise!
       finalize_without_devise!
       return if Devise.mappings.empty?