Impossible de créer une sous-catégorie avec un nom au format yyyy-mm-dd, le système indique un slug incorrect

Soutien
1

Hi, I tried to create a subcategory with a name 2019-12-07 as name and default slug, it says wrong slug. It accepts only something-2019-12-07 as a slug. Is there any restrictions this case?

Unfortunately I’m not able to reproduce it on try.

2

You can’t have all numeric slugs. That does not work.