Datamapper DataMapper

Instantiating a new user and then trying to set or access its 'login' property gives you an error when you first try to do it. But if you do it again, everything works as expected.

>> u = User.new
=> #<User:0x197f238 @new_record=true, @id=nil>
>> u.login = "test"
NoMethodError: undefined method `login=' for #<User:0x197f238>
	from (irb):3
>> u.login = "test"
=> "test"
>> u = User.new
=> #<User:0x1967fd4 @new_record=true, @updated_at=nil, @crypted_password=nil, @name=nil, @created_at=nil, @salt=nil, @login=nil, @remember_token=nil, @id=nil, @remember_token_expires_at=nil>

After doing this once, User.new will always work as expected. Here's my model code:

class User < DataMapper::Base
  property :name, :string
  property :login, :string
  property :crypted_password, :string
  property :salt, :string
  property :remember_token, :string
  property :remember_token_expires_at, :datetime
  property :created_at, :datetime
  property :updated_at, :datetime
end