restore --rbac-only doesn't restore anything

[Slach]

clickhouse-backup create --rbac-only rbac 
clickhouse-backup restore --rbac-only rbac 

restore log

2024/02/15 14:05:36.090012  info CREATE DATABASE IF NOT EXISTS `default` ENGINE = Atomic with args [[]] logger=clickhouse
2024/02/15 14:05:36.091319  info CREATE DATABASE IF NOT EXISTS `new` ENGINE = Atomic with args [[]] logger=clickhouse     
2024/02/15 14:05:36.092197  info CREATE DATABASE IF NOT EXISTS `test` ENGINE = Ordinary with args [[]] logger=clickhouse  
2024/02/15 14:05:36.092762  info CREATE DATABASE IF NOT EXISTS `tmp` ENGINE = Atomic with args [[]] logger=clickhouse     
2024/02/15 14:05:36.093261  warn 'rbac' doesn't contains tables for restore backup=rbac operation=restore
2024/02/15 14:05:36.093394  info clickhouse connection closed logger=clickhouse