Dup should reset the timestamps as it is considered a new record

1 files changed, 11 insertions, 0 deletions

diff --git a/activerecord/lib/active_record/base.rb b/activerecord/lib/active_record/base.rb
index d2fa3bed35..49b30f4779 100644
--- a/activerecord/lib/active_record/base.rb
+++ b/activerecord/lib/active_record/base.rb
@@ -1625,6 +1625,7 @@ MSG
 
         ensure_proper_type
         populate_with_current_scope_attributes
+        clear_timestamp_attributes
       end
 
       # Returns +true+ if the record is read only. Records loaded through joins with piggy-back
@@ -1831,6 +1832,16 @@ MSG
           create_with.each { |att,value| self.respond_to?(:"#{att}=") && self.send("#{att}=", value) } if create_with
         end
       end
+
+      # Clear attributes and changged_attributes
+      def clear_timestamp_attributes
+        %w(created_at created_on updated_at updated_on).each do |attribute_name|
+          if self.has_attribute?(attribute_name)
+            self[attribute_name] = nil
+            self.changed_attributes.delete(attribute_name)
+          end
+        end
+      end
   end
 
   Base.class_eval do