Can't add cyrillic username to room


Can’t add cyrillic username to room. I have LDAP sync on my RC server.
Some time ago, new user, in auth, have a LATIN username, example “Иванов Иван Иванович
but after update RC Server, i have THIS.
After auth, new user have a next login/name @Иванов
In RC client, i can’t find this user, in search list, for add in custom channel.
In search list visible only LATIN login/name, example @ Sidorov @ Petrov
So, i have 50% of LATIN old username and 50% NEW cyrillic usernames