Tag management for non-staff

[Steradiant (Maarten)]

我认为这现在已经基本解决了，因为有一个“允许编辑标签的群组”偏好设置，我们正是用它来允许 TL4 编辑标签的。然而，似乎仍有一些问题存在：

"Edit tags allowed groups" permission should include managing tag groups

The abilities to edit tags are rather limited, if you can not also edit the tag groups. An alternative could be to add a separate setting for that privilege.