PaperMC/Spigot-Server-Patches/0249-Mark-chunk-dirty-anytime-entities-change-to-guarante.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Mon, 23 Jul 2018 22:18:31 -0400
Subject: [PATCH] Mark chunk dirty anytime entities change to guarantee it
 saves


diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
index e33711fc14323777c86a485dee20ebaeb3989614..bc249e399befa84cdf07cc58cd0072bb9cb5cced 100644
--- a/src/main/java/net/minecraft/server/Chunk.java
+++ b/src/main/java/net/minecraft/server/Chunk.java
@@ -519,6 +519,7 @@ public class Chunk implements IChunkAccess {
         entity.chunkZ = this.loc.z;
         this.entities.add(entity); // Paper - per chunk entity list
         this.entitySlices[k].add(entity);
+        this.markDirty(); // Paper
     }
 
     @Override
@@ -546,6 +547,7 @@ public class Chunk implements IChunkAccess {
             return;
         }
         entityCounts.decrement(entity.getMinecraftKeyString());
+        this.markDirty(); // Paper
         // Paper end
         this.entities.remove(entity); // Paper
     }