Wrong join condition in SQL

[harmaty]

I have 3 models

class Login  < ActiveRecord::Base
  has_many :roles
end

class Property < ActiveRecord::Base
  has_many :roles
  has_one :owner, :through => :roles, :source => :login, :conditions => {:roles =>  {:relationship_type => 'owner'}}
end

class Role < ActiveRecord::Base
  belongs_to :login
  belongs_to :property
end

Property.search( :owner_email_eq => '[email protected]')

Generates following SQL:

 SELECT `properties`.* FROM `properties` 
   LEFT OUTER JOIN `roles` ON `properties`.`id` = `roles`.`property_id` 
   LEFT OUTER JOIN `logins` ON `roles`.`relationship_type` = 'owner' 
   WHERE `logins`.`email` = '[email protected]'

Condition: roles.relationship_type = 'owner' is wrong, it should be logins.id = roles.login_id

Problem appears only when condition for has_one :owner relation is defined, without condition search works fine

[plukacs]

I have the same problem.