module ActiveRecord::Inheritance::ClassMethods
def inherited(subclass)
def inherited(subclass) subclass.set_base_class subclass.instance_variable_set(:@_type_candidates_cache, Concurrent::Map.new) super end
def inherited(subclass) subclass.set_base_class subclass.instance_variable_set(:@_type_candidates_cache, Concurrent::Map.new) super end