Every time I update a subforum, it adds the name of the parent forum to the slug. I have to re-edit the subforum and change the slug all the time. But if I only change the subforum slug, it doesn't add the parent's name.
Thanks for your attention
The same happens to main forums too where the category name is added twice to the slug when pressing the update button. You can edit it back to what the slug is supposed to be but it's tiresome to keep doing double edits.
Corrected in the last Update