Paper/patches/server/0643-Don-t-ignore-result-of-PlayerEditBookEvent.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
Date: Mon, 5 Apr 2021 18:35:15 -0700
Subject: [PATCH] Don't ignore result of PlayerEditBookEvent


diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index 9451283c228637e56426e883f9e0aa5392e64dab..3fc7b714ded94dbc36488f1c8365a97235c9684c 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -1177,7 +1177,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
         }
 
         itemstack.addTagElement("pages", (Tag) nbttaglist);
-        CraftEventFactory.handleEditBookEvent(player, slot, handItem, itemstack); // CraftBukkit
+        this.player.getInventory().setItem(slot, CraftEventFactory.handleEditBookEvent(player, slot, handItem, itemstack)); // CraftBukkit // Paper - Don't ignore result (see other callsite for handleEditBookEvent)
     }
 
     @Override