Avoid loading the ActiveRecord::SessionStore class on initialization if it is...

Avoid loading the ActiveRecord::SessionStore class on initialization if it is not in use [#2737 state:resolved]
Signed-off-by: NJoshua Peek <josh@joshpeek.com>

railties/lib/initializer.rb

@@ -450,7 +450,7 @@ def initialize_database
     def initialize_database_middleware
       if configuration.frameworks.include?(:active_record)
         if configuration.frameworks.include?(:action_controller) &&
-            ActionController::Base.session_store == ActiveRecord::SessionStore
+            ActionController::Base.session_store.name == 'ActiveRecord::SessionStore'
           configuration.middleware.insert_before :"ActiveRecord::SessionStore", ActiveRecord::ConnectionAdapters::ConnectionManagement
           configuration.middleware.insert_before :"ActiveRecord::SessionStore", ActiveRecord::QueryCache
         else