helper :all behaviour in Rails 2.3.10.rb

gem i rails -v=2.3.10
rails broken-helper-all
cd broken-helper-all
./script/generate scaffold article
./script/generate scaffold product

# app/controllers/application_controller.rb
class ApplicationController < ActionController::Base
  helper :all # include all helpers, all the time
end

# app/helpers/articles_helper.rb
module ArticlesHelper
  def foo(a); end
end

# app/helpers/products_helpers.rb
def ProductsHelper
  def foo(a,b); end
end

# app/views/articles/index.html.erb
<%= foo('bar') %>

rake test:functionals #=> ArgumentError: wrong number of arguments (1 for 2)

Implicit helper :all behaviour in Rails 3.rb

gem i rails -v=3.0.1
rails new broken-helper-all
cd broken-helper-all
bundle install
rails g controller articles index
rails g controller products index

# helper :all is now the framework default and defined in ActionController::Base

# app/helpers/articles_helper.rb
module ArticlesHelper
  def foo(a); end
end

# app/helpers/products_helpers.rb
module ProductsHelper
  def foo(a,b); end
end

# app/views/articles/index.html.erb
<%= foo('bar') %>

rake test:functionals #=> ArgumentError: wrong number of arguments (1 for 2)

LH Ticket: https://rails.lighthouseapp.com/projects/8994/tickets/5467-helper-all-behaviour-doesnt-respect-the-current-controller