From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sat, 12 Mar 2022 15:19:27 -0800
Subject: [PATCH] Fix CreativeCategory API


diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftCreativeCategory.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftCreativeCategory.java
index 0c91897aa532e86e8a37c2359475f5dc0bb6e780..9036c388a1d7fbe7bbb1808d39b6701a6744438d 100644
--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftCreativeCategory.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftCreativeCategory.java
@@ -13,7 +13,7 @@ public final class CraftCreativeCategory {
             .put(CreativeModeTab.TAB_REDSTONE, CreativeCategory.REDSTONE)
             .put(CreativeModeTab.TAB_TRANSPORTATION, CreativeCategory.TRANSPORTATION)
             .put(CreativeModeTab.TAB_MISC, CreativeCategory.MISC) // Interchangeable in NMS
-            .put(CreativeModeTab.TAB_MATERIALS, CreativeCategory.MISC) // Interchangeable in NMS
+            // .put(CreativeModeTab.TAB_MATERIALS, CreativeCategory.MISC) // Interchangeable in NMS // Paper - can't have duplicate keys
             .put(CreativeModeTab.TAB_FOOD, CreativeCategory.FOOD)
             .put(CreativeModeTab.TAB_TOOLS, CreativeCategory.TOOLS)
             .put(CreativeModeTab.TAB_COMBAT, CreativeCategory.COMBAT)