Lock post when editing it

[BassMan]

I would like to see that the post someone is editing is locked meanwhile. That way it will prevent simultaneous editing, especially on busy board (https://xenforo.com/community/threads/wiki-on-forum.201862/page-2#post-1556194)

Also, with this behavior, we can implement some kind of wiki system, as already discussed here: https://xenforo.com/community/threads/wiki-on-forum.201862/