How to dispatch `self.new` to subclasses and not end up with stack level too deep error...

override_new.rb

module Steps
  class Step
    DEFAULT_VERSION = 2

    def self.new(attrs = {})
      version = attrs.fetch(:step_version, DEFAULT_VERSION)
      klass = "StepV#{version}".constantize
      klass.new(attrs)
    end
  end

  class StepV2 < Step
    def self.new(*args)
      obj = allocate
      obj.send(:initialize, *args)
      obj
    end

    def step_version
      2
    end
  end

  class StepV3 < Step
    def self.new(*args)
      obj = allocate
      obj.send(:initialize, *args)
      obj
    end
    
    def step_version
      3
    end
  end
end