After update to 4.1.0 binding.pry dont work on parallel_tests

[T00595]

After update my version for 4.1.0 binding.pry dont work on parallel_tests on terminal console, before this version this work normaly. The terminal does not allow to type.

In version 4.0.0

In Version 4.1.0

[grosser]

reproduction:

# Gemfile
source "https://rubygems.org"

gem "parallel_tests", path: "~/Code/tools/parallel_tests"
gem "minitest"

# test/a_test.rb
require "minitest/autorun"

describe "foo" do
  it "do" do
    # binding.irb
    puts "foo"
    sleep 10
  end
end

trap("SIGINT")  do
  puts "GOT INT"
  $stdout.flush
end

with pgroup we get 1 "GOT INT" but binding.irb does not work
without pgroup we get 2 "GOT INT" but binding.irb works

[grosser]

#891 might fix it ... but also good chance it breaks CI runs that get interrupted ... will play with that a bit more

[grosser]

v4.2.0