Logging into an unloaded world isn't going to end well.
This may fix the cases of people seeing errors about regionfiles
being closed, as loading chunks in an unloaded world will cause this
as the regionfile cache is closed but not cleared.
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
Bukkit Changes:
312281ea PR-742: Make World implement Keyed
CraftBukkit Changes:
2ac7fa7a SPIGOT-7014: getLootTable API should not persistently update loot table
7fdd7941 PR-1046: Make World implement Keyed
7bc728a6 PR-1045: Revert changes to persistence required checks
Spigot Changes:
b6d12d17 Rebuild patches
