Router in Rails 3 doesn't use inflections properly *really*

I'm using the latest beta4, created a brand new project using "rails new test" and hitting the same error as described in #4704 Router in Rails 3 pluralizes collection named routes twice. I'm not using any custom infections.

Test::Application.routes.draw do |map|
resources :blogs resources :books end

####

     GET    /blogs(.:format)          {:action=>"index", :controller=>"blogses"}

blogses POST /blogs(.:format) {:action=>"create", :controller=>"blogses"} new_blog GET /blogs/new(.:format) {:action=>"new", :controller=>"blogses"}

      GET    /blogs/:id(.:format)      {:action=>"show", :controller=>"blogses"}
      PUT    /blogs/:id(.:format)      {:action=>"update", :controller=>"blogses"}
 blog DELETE /blogs/:id(.:format)      {:action=>"destroy", :controller=>"blogses"}

edit_blog GET /blogs/:id/edit(.:format) {:action=>"edit", :controller=>"blogses"}

      GET    /books(.:format)          {:action=>"index", :controller=>"bookses"}

bookses POST /books(.:format) {:action=>"create", :controller=>"bookses"} new_book GET /books/new(.:format) {:action=>"new", :controller=>"bookses"}

      GET    /books/:id(.:format)      {:action=>"show", :controller=>"bookses"}
      PUT    /books/:id(.:format)      {:action=>"update", :controller=>"bookses"}
 book DELETE /books/:id(.:format)      {:action=>"destroy", :controller=>"bookses"}

edit_book GET /books/:id/edit(.:format) {:action=>"edit", :controller=>"bookses"}

When I change the names to their singular form, the routes are correct. But I guess that's not the intended behavior?

Test::Application.routes.draw do |map|
  resources :blog
  resources :book
end

          GET    /blog(.:format)          {:action=>"index", :controller=>"blogs"}
    blogs POST   /blog(.:format)          {:action=>"create", :controller=>"blogs"}
 new_blog GET    /blog/new(.:format)      {:action=>"new", :controller=>"blogs"}
          GET    /blog/:id(.:format)      {:action=>"show", :controller=>"blogs"}
          PUT    /blog/:id(.:format)      {:action=>"update", :controller=>"blogs"}
     blog DELETE /blog/:id(.:format)      {:action=>"destroy", :controller=>"blogs"}
edit_blog GET    /blog/:id/edit(.:format) {:action=>"edit", :controller=>"blogs"}
          GET    /book(.:format)          {:action=>"index", :controller=>"books"}
    books POST   /book(.:format)          {:action=>"create", :controller=>"books"}
 new_book GET    /book/new(.:format)      {:action=>"new", :controller=>"books"}
          GET    /book/:id(.:format)      {:action=>"show", :controller=>"books"}
          PUT    /book/:id(.:format)      {:action=>"update", :controller=>"books"}
     book DELETE /book/:id(.:format)      {:action=>"destroy", :controller=>"books"}
edit_book GET    /book/:id/edit(.:format) {:action=>"edit", :controller=>"books"}