Potential fix for Virtus::ValueObjects inheritance issue

virtus_value_objects.rb

require "virtus"

class Teacher
  include Virtus::ValueObject

  attribute :id, String

  def self.inherited(descendant)
    super

    descendant.define_singleton_method(:equalizer) do
      @equalizer ||=
        begin
          equalizer = Equalizer.new(name || inspect)
          include equalizer

          attribute_set.each do |attribute|
            equalizer << attribute.name
          end
          equalizer
        end
    end
  end # self.inherited

end

class TeachingAssistant < Teacher
  attribute :major, String
end

ta1 = TeachingAssistant.new(id: 1)
ta2 = TeachingAssistant.new(id: 2)

puts ta1.inspect
# => #<TeachingAssistant id="1" major=nil>
puts ta1.id
# => 1

puts ta2.inspect
# #<TeachingAssistant id="2" major=nil>
puts ta2.id
# => 2

puts ta1 == ta2
# false

puts ta1.eql? ta2
# false