Make sure AR::Base#clone handles attr changes made in after_initialize hooks. Closes #7191 [weyus]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@7802 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

activerecord/lib/active_record/base.rb

@@ -1751,9 +1751,9 @@ def destroy
       def clone
         attrs = self.attributes_before_type_cast
         attrs.delete(self.class.primary_key)
-        self.class.new do |record|
-          record.send :instance_variable_set, '@attributes', attrs
-        end
+        record = self.class.new
+        record.send :instance_variable_set, '@attributes', attrs
+        record
       end
 
       # Updates a single attribute and saves the record. This is especially useful for boolean flags on existing records.

activerecord/test/base_test.rb

@@ -1008,6 +1008,10 @@ def test_clone
     cloned_topic.title["a"] = "c" 
     assert_equal "b", topic.title["a"]
 
+    #test if attributes set as part of after_initialize are cloned correctly
+    assert_equal topic.author_email_address, cloned_topic.author_email_address
+
+    # test if saved clone object differs from original
     cloned_topic.save
     assert !cloned_topic.new_record?
     assert cloned_topic.id != topic.id

activerecord/test/fixtures/topic.rb

@@ -28,4 +28,10 @@ def default_written_on
     def destroy_children
       self.class.delete_all "parent_id = #{id}"
     end
-end
+
+    def after_initialize
+      if self.new_record?
+        self.author_email_address = 'test@test.com'
+      end
+    end
+end
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