Fix custom piglin interest items (#8097)

patches/server/Fix-custom-piglin-loved-items.patch

@@ -0,0 +1,21 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jake Potrebic <jake.m.potrebic@gmail.com>
+Date: Mon, 4 Jul 2022 21:50:44 -0700
+Subject: [PATCH] Fix custom piglin loved items
+
+Upstream didn't modify the isLovedItem check in wantsToPickup
+so piglins never actually tried to pickup interestItems
+
+diff --git a/src/main/java/net/minecraft/world/entity/monster/piglin/PiglinAi.java b/src/main/java/net/minecraft/world/entity/monster/piglin/PiglinAi.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/monster/piglin/PiglinAi.java
++++ b/src/main/java/net/minecraft/world/entity/monster/piglin/PiglinAi.java
+@@ -0,0 +0,0 @@ public class PiglinAi {
+         } else {
+             boolean flag = piglin.canAddToInventory(stack);
+ 
+-            return stack.is(Items.GOLD_NUGGET) ? flag : (PiglinAi.isFood(stack) ? !PiglinAi.hasEatenRecently(piglin) && flag : (!PiglinAi.isLovedItem(stack) ? piglin.canReplaceCurrentItem(stack) : PiglinAi.isNotHoldingLovedItemInOffHand(piglin) && flag));
++            return stack.is(Items.GOLD_NUGGET) ? flag : (PiglinAi.isFood(stack) ? !PiglinAi.hasEatenRecently(piglin) && flag : (!PiglinAi.isLovedItem(stack, piglin) ? piglin.canReplaceCurrentItem(stack) : PiglinAi.isNotHoldingLovedItemInOffHand(piglin) && flag)); // Paper - upstream missed isLovedItem check
+         }
+     }
+