1 files changed, 4 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/base.rb b/activerecord/lib/active_record/base.rb
index c761153941..73c69a91d1 100755
--- a/activerecord/lib/active_record/base.rb
+++ b/activerecord/lib/active_record/base.rb
@@ -251,6 +251,10 @@ module ActiveRecord #:nodoc:
       super
     end
 
+    def self.reset_subclasses
+      @@subclasses.clear
+    end
+
     @@subclasses = {}
 
     cattr_accessor :configurations