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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Thu, 11 Mar 2021 03:03:32 -0800
Subject: [PATCH] Do not run close logic for inventories on chunk unload

Still call the event and change the active container though. We
want to avoid close logic because it's possible to load the
chunk through it. This should also be OK from a leak prevention/
state desync POV because the TE is getting unloaded anyways.

diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index c83f2be16953b5cc009ddef81fd082295f3b2f71..f2015ffc83696b7ab6a552d4bb6fec1d8f6c6031 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -1270,9 +1270,13 @@ public class ServerLevel extends Level implements WorldGenLevel {
         // Spigot Start
         for (net.minecraft.world.level.block.entity.BlockEntity tileentity : chunk.getBlockEntities().values()) {
             if (tileentity instanceof net.minecraft.world.Container) {
+                // Paper start - this area looks like it can load chunks, change the behavior
+                // chests for example can apply physics to the world
+                // so instead we just change the active container and call the event
                 for (org.bukkit.entity.HumanEntity h : Lists.newArrayList(((net.minecraft.world.Container) tileentity).getViewers())) {
-                    h.closeInventory(org.bukkit.event.inventory.InventoryCloseEvent.Reason.UNLOADED); // Paper - Inventory close reason
+                    ((org.bukkit.craftbukkit.entity.CraftHumanEntity) h).getHandle().closeUnloadedInventory(org.bukkit.event.inventory.InventoryCloseEvent.Reason.UNLOADED); // Paper - Inventory close reason
                 }
+                // Paper end - this area looks like it can load chunks, change the behavior
             }
         }
         // Spigot End
diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
index fb86824192f1fc850a55905757c65cafec1edb6a..48edd0bf7a6f24aaf582a96ee7cb4c29c9e3598a 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -1581,6 +1581,18 @@ public class ServerPlayer extends Player {
         this.connection.send(new ClientboundContainerClosePacket(this.containerMenu.containerId));
         this.doCloseContainer();
     }
+    // Paper start - special close for unloaded inventory
+    @Override
+    public void closeUnloadedInventory(org.bukkit.event.inventory.InventoryCloseEvent.Reason reason) {
+        // copied from above
+        CraftEventFactory.handleInventoryCloseEvent(this, reason); // CraftBukkit
+        // Paper end
+        // copied from below
+        this.connection.send(new ClientboundContainerClosePacket(this.containerMenu.containerId));
+        this.containerMenu = this.inventoryMenu;
+        // do not run close logic
+    }
+    // Paper end - special close for unloaded inventory
 
     @Override
     public void doCloseContainer() {
diff --git a/src/main/java/net/minecraft/world/entity/player/Player.java b/src/main/java/net/minecraft/world/entity/player/Player.java
index e4cb4a12c8623d19ccceccaceeca528edf3848e4..1a2083e5887dc8ba0ad908cc961dd090cbc165f5 100644
--- a/src/main/java/net/minecraft/world/entity/player/Player.java
+++ b/src/main/java/net/minecraft/world/entity/player/Player.java
@@ -509,6 +509,11 @@ public abstract class Player extends LivingEntity {
         this.containerMenu = this.inventoryMenu;
     }
     // Paper end - Inventory close reason
+    // Paper start - special close for unloaded inventory
+    public void closeUnloadedInventory(org.bukkit.event.inventory.InventoryCloseEvent.Reason reason) {
+        this.containerMenu = this.inventoryMenu;
+    }
+    // Paper end - special close for unloaded inventory
 
     public void closeContainer() {
         this.containerMenu = this.inventoryMenu;