Freeze OPTION_NOT_GIVEN

surkova · surkova · commit 11a21f19310b · 2024-11-29T12:17:05.000+01:00
diff --git a/activemodel/lib/active_model/attribute_mutation_tracker.rb b/activemodel/lib/active_model/attribute_mutation_tracker.rb
@@ -5,7 +5,7 @@
 
 module ActiveModel
   class AttributeMutationTracker # :nodoc:
-    OPTION_NOT_GIVEN = Object.new
+    OPTION_NOT_GIVEN = Object.new.freeze
 
     def initialize(attributes)
       @attributes = attributes
