reproduction script for active record issue #11824

AR-issue-11824.rb

unless File.exist?('Gemfile')
  File.write('Gemfile', <<-GEMFILE)
    source 'https://rubygems.org'
    gem 'rails', github: 'rails/rails'
    gem 'arel', github: 'rails/arel'
    gem 'sqlite3'
  GEMFILE

  system 'bundle'
end

require 'bundler'
Bundler.setup(:default)

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 = Logger.new(STDOUT)

ActiveRecord::Schema.define do
  create_table :posts
end

class Post < ActiveRecord::Base
end

class BugTest < Minitest::Test
  def test_count_with_select_scope
    Post.create!

    assert_equal 1, Post.select('posts.id').limit(10).count
    assert_equal 1, Post.select('posts.*').limit(10).count
  end
end