weird case with objc-keyword messages when defining singleton method

testcase.rb

class MyView < UIView
  attr_accessor :state
end

class Test
  def initialize(delegate)
    delegate.controllerWithValue(1, someStringValue: nil)
  end
end

class WrongTestDelegate
  attr_accessor :someStringValue
   def controllerWithValue(value, someStringValue: someStringValue)
      myView = MyView.alloc.init
      def myView.state
        true
      end

      @someStringValue = someStringValue
   end
end

class RightTestDelegate
  attr_accessor :someStringValue
   def controllerWithValue(value, someStringValue: someStringValue)
      @someStringValue = someStringValue
   end
end


class AppDelegate
  def application(application, didFinishLaunchingWithOptions:launchOptions)

    # differences between wrong and right delegates
    # are lines 14 to 17
    wrongDelegate = WrongTestDelegate.new
    test = Test.new(wrongDelegate)
    p wrongDelegate.someStringValue.nil? #false
    p wrongDelegate #<WrongTestDelegate:0x763d9d0 @someStringValue={:someStringValue=>nil}>

    rightDelegate = RightTestDelegate.new
    test = Test.new(rightDelegate)
    p rightDelegate.someStringValue.nil? #true
    p rightDelegate ##<RightTestDelegate:0x7675590 @someStringValue=nil>

    true
  end
end