Update models/user.go

Co-authored-by: zeripath <[email protected]>

Author: 6543

models/user.go

@@ -1010,7 +1010,8 @@ func ChangeUserName(u *User, newUserName string) (err error) {
 
 	if err = sess.Commit(); err != nil {
 		if err2 := os.Rename(UserPath(newUserName), UserPath(oldUserName)); err2 != nil && !os.IsNotExist(err2) {
-			return err2
+			log.Critical("Unable to rollback directory change during failed username change from: %s to: %s. DB Error: %v. Filesystem Error: %v", oldUserName, newUserName, err, err2)
+			return fmt.Errorf("failed to rollback directory change during failed username change from: %s to: %s. DB Error: %w. Filesystem Error: %v", oldUserName, newUserName, err, err2)
 		}
 		return err
 	}