Saving Embedded document with :name option

address.rb

class Address
  include Mongoid::Document
  
  field :street, type: String
  field :city, type: String
  field :state, type: String
  field :zipcode, type: String
  field :country, type: String

  embedded_in :author, name: :permanent_address
  embedded_in :author, name: :current_address
end

author.rb

class Author
  include Mongoid::Document

  field :name, type: String
  field :last_name, type: String
  field :password, type: String

  embeds_one :permanent_address, class_name: 'Address'
  embeds_one :current_address, class_name: 'Address'
end

console.rb

2.0.0p247 :001 > a = Author.all.sample
 => #<Author _id: 51fc058545db7c843f000fe2, name: "Elton Renner", last_name: nil, password: nil> 
2.0.0p247 :002 > a.permanent_address = Address.new(city: "London")
 => #<Address _id: 5271c4f9476175a209000000, street: nil, city: "London", state: nil, zipcode: nil, country: nil, publisher_id: nil> 
2.0.0p247 :003 > a.current_address = Address.new(city: "Madrid")
 => #<Address _id: 5271c506476175a209010000, street: nil, city: "Madrid", state: nil, zipcode: nil, country: nil, publisher_id: nil> 
2.0.0p247 :004 > 

mongodb.log

Thu Oct 31 08:18:10.635 [conn14] getmore sodibee_development.authors cursorid:21582399651377187 ntoreturn:0 keyUpdates:0 locks(micros) r:2205 nreturned:9921 reslen:462589 2ms
Thu Oct 31 08:18:25.006 [conn14] update sodibee_development.authors query: { _id: ObjectId('51fc058545db7c843f000fe2') } update: { $set: { permanent_address: { _id: ObjectId('5271c4f9476175a209000000'), city: "London" } } } idhack:1 nmoved:1 nupdated:1 keyUpdates:0 locks(micros) w:259 0ms
Thu Oct 31 08:18:25.006 [conn14] run command sodibee_development.$cmd { getlasterror: 1, w: 1 }
Thu Oct 31 08:18:25.006 [conn14] command sodibee_development.$cmd command: { getlasterror: 1, w: 1 } ntoreturn:1 keyUpdates:0  reslen:85 0ms
Thu Oct 31 08:18:25.025 [journal] lsn set 5014223
Thu Oct 31 08:18:38.700 [conn14] update sodibee_development.authors query: { _id: ObjectId('51fc058545db7c843f000fe2') } update: { $set: { current_address: { _id: ObjectId('5271c506476175a209010000'), city: "Madrid" } } } idhack:1 nmoved:1 nupdated:1 keyUpdates:0 locks(micros) w:438 0ms