Please run these mysql statements after getting commit 5a96d8ef5cbc88df366016ae9dd7ee46e4ca417a on master branch:
ALTER TABLE `cloud`.`user` ADD COLUMN domain_id bigint(20) unsigned DEFAULT NULL; ALTER TABLE `cloud`.`user` ADD CONSTRAINT `fk_user__domain_id` FOREIGN KEY `fk_user__domain_id`(`domain_id`) REFERENCES `domain`(`id`) ON DELETE CASCADE; UPDATE `cloud`.`user` SET `cloud`.`user`.domain_id=(SELECT `cloud`.`account`.domain_id FROM `cloud`.`account` WHERE `cloud`.`account`.id=`cloud`.`user`.account_id) where id > 0; ALTER TABLE `cloud`.`user` ADD UNIQUE KEY `username_domain_id` (`username`,`domain_id`); -alena.