polymorphic_path seems to be calling incorrect path method

-1

Pretty sure this may have been cleaned up over the month, but i didn't get the result

rails newapp
rails g scaffold user name:string

in routes.rb s/resources :users/resources :user/

GET /user/new & make a user record
update app/views/users/index.html.erb line #15 Doc for ActionController::Resources::Resource.resources

-    <td><%= link_to 'Show', user %></td>
+    <td><%= link_to 'Show', polymorphic_path(user) %></td>

GET /user

Note the lack of fail, and the working link.