login with national (russian) symbols is not work correctly
In login`s list, click to national login - user not found
I can not reproduce this. I created a user "кириллица" and logged in successfully with that user.
What auth backend do you use?
What's the exact user name used?
What do you mean by "In login`s list, click to national login - user not found"?
I can't confirm this bug with a plain authentication method, but we had same problem with MySQL database from SMF. It was because SMF need to convert username to lowercase, but strtolower() PHP function doesn't convert correctly UTF-8 strings, and request to check password in Doku config contain MYSQL function LOWER(), which correctly work with UTF-8. If you use some of database authentication methods I advise to check all username and password conversions carefully.
seems to be problem with the backend database