MONGOID-4398 Use conditional assignment operator
MONGOID-4398 Use conditional assignment operator

kay-kim/mongoid,nviennot/mongoid,nviennot/mongoid,mongodb/mongoid,mongodb/mongoid,Welovroi/mongoid,herimedia/mongoid,herimedia/mongoid,mongodb/mongoid,Welovroi/mongoid,Sharevari-Inc/mongoid,jonhyman/mongoid,Sharevari-Inc/mongoid,kay-kim/mongoid,jonhyman/mongoid