Dumb usage of after_commit

gistfile1.txt

# frozen_string_literal: true

require "bundler/inline"

gemfile(true) do
  source "https://rubygems.org"

  git_source(:github) { |repo| "https://github.com/#{repo}.git" }

  # Activate the gem you are reporting the issue against.
  gem "activerecord", "6.1.0"
  gem "sqlite3"
end

require "active_record"
require "minitest/autorun"
require "logger"

# This connection will do for database-independent bug reports.
ActiveRecord::Base.establish_connection(adapter: "sqlite3", database: ":memory:")
ActiveRecord::Base.logger = nil

ActiveRecord::Schema.define do
  create_table :posts, force: true do |t|
  end
end

class Post < ActiveRecord::Base
  def self.bulk_ops
    find_each do
      after_commit { p "Some doesn't expect that to happen in SecondTest, but they should" }
    end
  end
end

class FirstTest < Minitest::Test
  def test_adds_after_commit_to_model
    p "First test"
    Post.create!
    Post.bulk_ops
  end
end

class SecondTest < Minitest::Test
  def test_has_after_commit_triggered
    p "Second test"
    Post.create!
  end
end