PaperMC/patches/server-remapped/0646-Fix-villager-boat-exploit.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: jmp <jasonpenilla2@me.com>
Date: Mon, 11 Jan 2021 12:43:51 -0800
Subject: [PATCH] Fix villager boat exploit


diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
index 7e07fd0c8dec9f9cdeda65dfa0ccf42b4dde010e..9d1116f601b79dabf7a0d9e5ecf5c2a0306f9aa4 100644
--- a/src/main/java/net/minecraft/server/players/PlayerList.java
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
@@ -78,6 +78,7 @@ import net.minecraft.util.Mth;
 import net.minecraft.world.effect.MobEffectInstance;
 import net.minecraft.world.entity.Entity;
 import net.minecraft.world.entity.EntityType;
+import net.minecraft.world.entity.npc.AbstractVillager;
 import net.minecraft.world.level.ChunkPos;
 import net.minecraft.world.level.GameRules;
 import net.minecraft.world.level.GameType;
@@ -617,6 +618,15 @@ public abstract class PlayerList {
 
                 for (Iterator iterator = entity.getIndirectPassengers().iterator(); iterator.hasNext(); entity1.removed = true) {
                     entity1 = (Entity) iterator.next();
+                    // Paper start
+                    if (entity1 instanceof AbstractVillager) {
+                        final AbstractVillager villager = (AbstractVillager) entity1;
+                        final net.minecraft.world.entity.player.Player human = villager.getTradingPlayer();
+                        if (human != null) {
+                            villager.setTradingPlayer(null);
+                        }
+                    }
+                    // Paper end
                     worldserver.despawn(entity1);
                 }