Changes

Fix spawn chunk NPC loading issues, fixes #1332 (#1625)
Some misplaced code unintentionally caused chunks to load in the middle
of the startup sequence (after NPCs refused to spawn in the chunk, but
before the server was fully started), meaning any chunk that normally
loads within a few seconds of startup would be loaded already at that
time, meaning a chunk load event never fires, and thus any NPCs at that
location simply don't spawn in until the chunk is allowed to naturally
unload and is later loaded again.
 (commit: 05abc92)