1 files changed, 12 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/attribute_set.rb b/activerecord/lib/active_record/attribute_set.rb
index 8a964fb03c..64df6f6358 100644
--- a/activerecord/lib/active_record/attribute_set.rb
+++ b/activerecord/lib/active_record/attribute_set.rb
@@ -52,6 +52,18 @@ module ActiveRecord
       super
     end
 
+    def reset(key)
+      if include?(key)
+        write_from_database(key, nil)
+      end
+    end
+
+    def ensure_initialized(key)
+      unless self[key].initialized?
+        write_from_database(key, nil)
+      end
+    end
+
     protected
 
     attr_reader :attributes