Ensure we are pointing to the proper sessions controller on failure.

test/rails_app/app/controllers/admins/sessions_controller.rb

@@ -1,4 +1,4 @@
-class SessionsController < Devise::SessionsController
+class Admins::SessionsController < Devise::SessionsController
   def new
     flash[:special] = "Welcome to #{controller_path.inspect} controller!"
     super

test/rails_app/config/routes.rb

@@ -19,7 +19,7 @@ Rails.application.routes.draw do
   match "/sign_in", :to => "devise/sessions#new"
 
   # Admin scope
-  devise_for :admin, :path => "admin_area", :controllers => { :sessions => "sessions" }, :skip => :passwords
+  devise_for :admin, :path => "admin_area", :controllers => { :sessions => "admins/sessions" }, :skip => :passwords
 
   match "/admin_area/home", :to => "admins#index", :as => :admin_root
   match "/anywhere", :to => "foo#bar", :as => :new_admin_password
@@ -29,7 +29,7 @@ Rails.application.routes.draw do
   end
 
   # Other routes for routing_test.rb
-  namespace :publisher, :path_names => { :sign_in => "i_don_care", :sign_out => "get_out" } do
+  namespace :publisher, :path_names => { :sign_in => "i_dont_care", :sign_out => "get_out" } do
     devise_for :accounts, :class_name => "User", :path_names => { :sign_in => "get_in" }
   end
 
@@ -43,10 +43,10 @@ Rails.application.routes.draw do
       }
   end
 
-  namespace :sign_out_via do
-    devise_for :deletes, :sign_out_via => :delete, :class_name => "User", :controllers => { :sessions => "sessions" }
-    devise_for :posts, :sign_out_via => :post, :class_name => "User", :controllers => { :sessions => "sessions" }
-    devise_for :delete_or_posts, :sign_out_via => [:delete, :post], :class_name => "User", :controllers => { :sessions => "sessions" }
+  namespace :sign_out_via, :module => "devise" do
+    devise_for :deletes, :sign_out_via => :delete, :class_name => "User"
+    devise_for :posts, :sign_out_via => :post, :class_name => "User"
+    devise_for :delete_or_posts, :sign_out_via => [:delete, :post], :class_name => "User"
   end
 
   match "/set", :to => "home#set"