From 609b90d3e67f3dd186e4cd7fd802a7b53d5da412 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 4eb08553c6..404b7d21c2 100644
--- a/src/main/java/net/minecraft/server/Chunk.java
+++ b/src/main/java/net/minecraft/server/Chunk.java
@@ -711,6 +711,7 @@ public class Chunk implements IChunkAccess {
         entity.ag = this.locZ;
         this.entitySlices[k].add(entity);
         // Paper start
+        this.markDirty();
         if (entity instanceof EntityItem) {
             itemCounts[k]++;
         } else if (entity instanceof IInventory) {
@@ -742,6 +743,7 @@ public class Chunk implements IChunkAccess {
         if (!this.entitySlices[i].remove(entity)) {
             return;
         }
+        this.markDirty();
         if (entity instanceof EntityItem) {
             itemCounts[i]--;
         } else if (entity instanceof IInventory) {
-- 
2.18.0