[geeklog-hg] [Geeklog-Core/geeklog] 9293b2: Updated validation on form fields when saving

[Tom]

  Branch: refs/heads/master
  Home:   https://github.com/Geeklog-Core/geeklog
  Commit: 9293b216ea650274e2d5a3876f9bcc97ccf82fc6
      https://github.com/Geeklog-Core/geeklog/commit/9293b216ea650274e2d5a3876f9bcc97ccf82fc6
  Author: eSilverStrike <eSilverStrike at users.noreply.github.com>
  Date:   2023-12-11 (Mon, 11 Dec 2023)

  Changed paths:
    M public_html/admin/group.php
    M public_html/admin/router.php
    M public_html/admin/trackback.php

  Log Message:
  -----------
  Updated validation on form fields when saving

Patch provided by hirongl

For #1158