https://manifold.markets/Jordinne/how-many-people-from-the-unofficial?r=TG9nYWVtcw

This market resolved to 21, though the market creator agreed that technically, 22 was the correct answer, and posted the request for it to be re-resolved on the "please-resolve" discord channel. It was quite a long time ago though, so it probably isn't very realistic to happen.