Mongoid references_and_referenced_in association assignment bug

gistfile1.rb

class Game
  include Mongoid::Document
  field :title
  
  references_and_referenced_in_many :players
end

class Player
  include Mongoid::Document
  field :name
  
  references_many :games
end

game = Game.new

3.times { |i| game.players << Player.new }
game.save
# => true

game.reload

game.players.size
# => 3

game.players = []

game.save
# => true

game.reload

game.players.size
# => 3