Document touch() doesn't clear the stat cache.

[Crell]

Thanks to @derickr for pointing this out to me. It drove me batty for days. :smile:

[Crell]

Seems like we should add the same warning to other functions, then. Is it worth making an entity out of it, or just copy-paste-tweak?

[Girgias]

We already have the note.clearstatcache entity. Is that insufficient?

[Crell]

What is insufficient is my awareness that entity already exists. :smile: Switched to using that, and added touch to the list on the clearstatcache page, which was missing.