We need to be sure require_no_authentication runs before other user filters that may call some Devise helper (ie current_xxx).
Conflicts:
app/controllers/devise/passwords_controller.rb
app/controllers/devise/registrations_controller.rb
app/controllers/devise/sessions_controller.rb
app/controllers/devise/unlocks_controller.rb
lib/devise/controllers/internal_helpers.rb
test/rails_app/app/controllers/application_controller.rb
