I forgot to release updates for this half a year ago... Pushed an update to BukkitDev... it's still pending in BukkitDev for 8 days now. So whatever, here it is right now.

• Don't inadvertently load chunks when checking if a chunk is loaded
• Fix confirmation book not appearing (change happened back in 1.15)
• Fix exception when buying the entire stock of a doublechest (integer division modified to be round-up)
• bump API to 1.16 to support new 1.16 item types