Don't load chunks for villager door checks

This avoids villages spam loading chunks sync

Spigot-Server-Patches/0300-Don-t-load-chunks-for-villager-door-checks.patch

@@ -0,0 +1,28 @@
+From 8159283895fa3fc65c9d1ab0d3e1ad67a1c9fe9c Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Tue, 5 Jun 2018 00:32:22 -0400
+Subject: [PATCH] Don't load chunks for villager door checks
+
+This avoids villages spam loading chunks sync
+
+diff --git a/src/main/java/net/minecraft/server/PersistentVillage.java b/src/main/java/net/minecraft/server/PersistentVillage.java
+index 01f7cee38..a3aa9f82e 100644
+--- a/src/main/java/net/minecraft/server/PersistentVillage.java
++++ b/src/main/java/net/minecraft/server/PersistentVillage.java
+@@ -226,7 +226,12 @@ public class PersistentVillage extends PersistentBase {
+     }
+ 
+     private boolean f(BlockPosition blockposition) {
+-        IBlockData iblockdata = this.world.getType(blockposition);
++        // Paper start
++        IBlockData iblockdata = this.world.getTypeIfLoaded(blockposition);
++        if (iblockdata == null) {
++            return false;
++        }
++        // Paper end
+         Block block = iblockdata.getBlock();
+ 
+         return block instanceof BlockDoor ? iblockdata.getMaterial() == Material.WOOD : false;
+-- 
+2.17.1
+