1 files changed, 7 insertions, 14 deletions
diff --git a/activerecord/lib/active_record/attribute_methods.rb b/activerecord/lib/active_record/attribute_methods.rb
index 1ed1deec55..ebe06566cc 100644
--- a/activerecord/lib/active_record/attribute_methods.rb
+++ b/activerecord/lib/active_record/attribute_methods.rb
@@ -394,28 +394,21 @@ module ActiveRecord
 
     protected
 
-      def clone_attribute_value(reader_method, attribute_name) # :nodoc:
-        value = send(reader_method, attribute_name)
-        value.duplicable? ? value.clone : value
-      rescue TypeError, NoMethodError
-        value
+      def attribute_method?(attr_name) # :nodoc:
+        # We check defined? because Syck calls respond_to? before actually calling initialize.
+        defined?(@attributes) && @attributes.key?(attr_name)
       end
 
-      def arel_attributes_with_values_for_create(attribute_names) # :nodoc:
+    private
+
+      def arel_attributes_with_values_for_create(attribute_names)
         arel_attributes_with_values(attributes_for_create(attribute_names))
       end
 
-      def arel_attributes_with_values_for_update(attribute_names) # :nodoc:
+      def arel_attributes_with_values_for_update(attribute_names)
         arel_attributes_with_values(attributes_for_update(attribute_names))
       end
 
-      def attribute_method?(attr_name) # :nodoc:
-        # We check defined? because Syck calls respond_to? before actually calling initialize.
-        defined?(@attributes) && @attributes.key?(attr_name)
-      end
-
-    private
-
       # Returns a Hash of the Arel::Attributes and attribute values that have been
       # typecasted for use in an Arel insert/update method.
       def arel_attributes_with_values(attribute_names)