diff options
| -rw-r--r-- | activerecord/lib/active_record/attribute_set.rb | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/attribute_set.rb b/activerecord/lib/active_record/attribute_set.rb index abe8e14f26..01f9d815d5 100644 --- a/activerecord/lib/active_record/attribute_set.rb +++ b/activerecord/lib/active_record/attribute_set.rb @@ -64,7 +64,9 @@ module ActiveRecord end def deep_dup - self.class.new(attributes.deep_dup) + self.class.allocate.tap do |copy| + copy.instance_variable_set(:@attributes, attributes.deep_dup) + end end def initialize_dup(_) |