Paper/patches/server/0654-Fix-PlayerItemConsumeEvent-cancelling-properly.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: chickeneer <emcchickeneer@gmail.com>
Date: Fri, 19 Mar 2021 00:33:15 -0500
Subject: [PATCH] Fix PlayerItemConsumeEvent cancelling properly

When the active item is not cleared, the item is still readied
for use and will repeatedly trigger the PlayerItemConsumeEvent
till their item is switched.
This patch clears the active item when the event is cancelled

diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
index fdf0c39111059d7030cfc1eddfdcdda375bd2640..99b33003c97bb86b2cfc4a77298ac52efad6e78f 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -3702,6 +3702,7 @@ public abstract class LivingEntity extends Entity {
                     level.getCraftServer().getPluginManager().callEvent(event);
 
                     if (event.isCancelled()) {
+                        this.stopUsingItem(); // Paper - event is using an item, clear active item to reset its use
                         // Update client
                         ((ServerPlayer) this).getBukkitEntity().updateInventory();
                         ((ServerPlayer) this).getBukkitEntity().updateScaledHealth();