Timecop Indefinite Wait with `Concurrent::IVar`

Gemfile

source 'https://rubygems.org'

ruby '3.3.0'

gem 'concurrent-ruby', '1.3.1'
gem 'minitest', '5.23.1'
gem 'timecop', '0.9.9'

Gemfile.lock

GEM
  remote: https://rubygems.org/
  specs:
    concurrent-ruby (1.3.1)
    minitest (5.23.1)
    timecop (0.9.9)

PLATFORMS
  aarch64-linux
  arm-linux
  arm64-darwin
  x86-linux
  x86_64-darwin
  x86_64-linux

DEPENDENCIES
  concurrent-ruby (= 1.3.1)
  minitest (= 5.23.1)
  timecop (= 0.9.9)

RUBY VERSION
   ruby 3.3.0p0

BUNDLED WITH
   2.5.5

hang_test.rb

Bundler.setup

require 'concurrent-ruby'
require 'timecop'

require 'minitest/autorun'

class HangTest < Minitest::Test
  def test_hang
    Timecop.freeze(2024, 6, 1) do
      ivar = Concurrent::IVar.new
      ivar.value!(0.01)
    end
  end
end

run.sh

bundle install
bundle exec ruby hang_test.rb