Paper/patches/server/0783-Fix-merchant-inventory-not-closing-on-entity-removal.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Thu, 2 Sep 2021 00:24:06 -0700
Subject: [PATCH] Fix merchant inventory not closing on entity removal


diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index ac7fe0d08b1d44303d6578bb45c83a9cb7925b6e..1cf809480d9ad7dd24c697d79621106544d32146 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -2409,6 +2409,11 @@ public class ServerLevel extends Level implements WorldGenLevel {
             // Spigot end
             // Spigot Start
             if (entity.getBukkitEntity() instanceof org.bukkit.inventory.InventoryHolder) {
+                // Paper start
+                if (entity.getBukkitEntity() instanceof org.bukkit.inventory.Merchant merchant && merchant.getTrader() != null) {
+                    merchant.getTrader().closeInventory(org.bukkit.event.inventory.InventoryCloseEvent.Reason.UNLOADED);
+                }
+                // Paper end
                 for (org.bukkit.entity.HumanEntity h : Lists.newArrayList(((org.bukkit.inventory.InventoryHolder) entity.getBukkitEntity()).getInventory().getViewers())) {
                     h.closeInventory(org.bukkit.event.inventory.InventoryCloseEvent.Reason.UNLOADED); // Paper
                 }