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 8bc74878919ab7cf6a50d425da61f1b8a8b0ee44..37787a725725d22b0870dcab0f3bec8b94cfd130 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -3348,6 +3348,7 @@ 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();