Merge pull request rails#53331 from Shopify/speedup-attribute-set-deep-dup

byroot · web-flow · commit 5465c7de22aa · 2024-10-16T12:19:47.000+02:00
Speedup AttributeSet#deep_dup
diff --git a/activemodel/lib/active_model/attribute_set.rb b/activemodel/lib/active_model/attribute_set.rb
@@ -71,7 +71,7 @@ def freeze
     end
 
     def deep_dup
-      AttributeSet.new(attributes.deep_dup)
+      AttributeSet.new(attributes.transform_values(&:deep_dup))
     end
 
     def initialize_dup(_)
