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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 efc27bb4072172f10839c181de9b5fba1f488b6f..4c739717fcf53b28312e8a98f9bf0989c604d0f0 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -1274,9 +1274,13 @@ 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 fdf73f71ca34099081f9f80994bbe411052c0149..d868d0776a8ca26deefe2e6b77838c2b502fff57 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -1718,6 +1718,18 @@ public class ServerPlayer extends net.minecraft.world.entity.player.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 e772b6a501b225f13399365ad743cabe5f6f792e..fab56040ecf496e74f583ec5d6c6c9861cfa4e13 100644
--- a/src/main/java/net/minecraft/world/entity/player/Player.java
+++ b/src/main/java/net/minecraft/world/entity/player/Player.java
@@ -510,6 +510,11 @@ 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;