# File lib/polyamorous/activerecord_4.2_ruby_1.9/join_association.rb, line 13
    def initialize_with_polymorphism(reflection, children,
      polymorphic_class = nil, join_type = Arel::Nodes::InnerJoin)
      @join_type = join_type
      if polymorphic_class && ::ActiveRecord::Base > polymorphic_class
        swapping_reflection_klass(reflection, polymorphic_class) do |reflection|
          initialize_without_polymorphism(reflection, children)
          self.reflection.options[:polymorphic] = true
        end
      else
        initialize_without_polymorphism(reflection, children)
      end
    end