Update IsUniqueName.php

app/Models/User/IsUniqueName.php

@@ -17,14 +17,16 @@ class IsUniqueName extends Action
         $vars  = [
             ':id'    => (int) $user->id,
             ':name'  => $user->username,
-            ':other' => \preg_replace('%[^\p{L}\p{N}]%u', '', $user->username), //???? что за бред :)
         ];
         $query = 'SELECT u.username
             FROM ::users AS u
-            WHERE (LOWER(u.username)=LOWER(?s:name) OR LOWER(u.username)=LOWER(?s:other)) AND u.id!=?i:id';
+            WHERE LOWER(u.username)=LOWER(?s:name) AND u.id!=?i:id';
 
         $result = $this->c->DB->query($query, $vars)->fetchAll();
 
         return ! \count($result);
+
+        // ???? нужен нормализованный username для определения уникальности
+        // это https://www.unicode.org/Public/security/latest/confusables.txt преобразование не очень :(
     }
 }