Anyone who can edit topics in the category where the FAQ lives. That’s the staff category by default, but if you move it somewhere else, then a TL4 could edit it.
hmm, this doesn’t work.
A TL4 user, which is in the “staff” group, can not edit the article.
Even if the faq is a “wiki post” the TL4 user is not able to edit it.
The faq article was once moved to another category but then moved back to staff. Can this be the reason why it doesn’t work?
The TL4 user (sorry, forget to mention it, the TL4 user is moderator, too) has access to the staff group but editing is not possible. As I said, even “admin controls” exists and work but not the option to edit the post.
Currently, the post is no wiki post. I just tested with 2.5.3 and it is still not working to change the faq with moderator priv / TL4. Even if this user is able to change the entry to be a wiki post (just that you know that this user has “great rights”).
Plugins:
Yes, the moderator user is a SAML user.
Can it be that its related because of moving the FAQ site to another category and then back?
(thanks to @ondrej / @justin for your help - very appreciated)