History is not saved with nested IRB sessions

[st0012]

# test.rb
class Foo
  def self.bar
    binding.irb
  end
end
binding.irb

$ cat ~/.irb_history
cat: /Users/hung-wulo/.irb_history: No such file or directory
$ be ruby test.rb

From: test.rb @ line 7 :

    2: class Foo
    3:   def self.bar
    4:     binding.irb
    5:   end
    6: end
 => 7: binding.irb

irb(main):001:0> 111
=> 111
irb(main):002:0> Foo.bar

From: test.rb @ line 4 :

    1: # test.rb
    2: class Foo
    3:   def self.bar
 => 4:     binding.irb
    5:   end
    6: end
    7: binding.irb

irb(Foo):001:0> 222
=> 222
irb(Foo):002:0> exit
=> nil
irb(main):003:0> 333
=> 333
irb(main):004:0> exit
$ cat ~/.irb_history
cat: /Users/hung-wulo/.irb_history: No such file or directory