Fix various mob drops being captured as death drops (#5675)

build-data/mappings-patch.tiny

@@ -55,3 +55,11 @@ c	net/minecraft/server/network/PlayerConnection	net/minecraft/server/network/Ser
 # Commands performCommand adds a stripSlash boolean
 c	net/minecraft/commands/CommandDispatcher	net/minecraft/commands/Commands
 	m	(Lnet/minecraft/commands/CommandListenerWrapper;Ljava/lang/String;Ljava/lang/String;Z)I	a	performCommand
+
+# Craftbukkit overloads equipItemIfPossible in Mob adding an ItemEntity parameter
+c	net/minecraft/world/entity/EntityInsentient	net/minecraft/world/entity/Mob
+	m	(Lnet/minecraft/world/item/ItemStack;Lnet/minecraft/world/entity/item/EntityItem;)Z	j	equipItemIfPossible
+
+# Craftbukkit overloads convertTo in Mob adding various API reasons
+c	net/minecraft/world/entity/EntityInsentient	net/minecraft/world/entity/Mob
+	m	(Lnet/minecraft/world/entity/EntityTypes;ZLorg/bukkit/event/entity/EntityTransformEvent$TransformReason;Lorg/bukkit/event/entity/CreatureSpawnEvent$SpawnReason;)Lnet/minecraft/world/entity/EntityInsentient;	a	convertTo

patches/server/Add-a-bunch-of-missing-forceDrop-toggles.patch

@@ -0,0 +1,76 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jake Potrebic <jake.m.potrebic@gmail.com>
+Date: Tue, 20 Jul 2021 21:25:35 -0700
+Subject: [PATCH] Add a bunch of missing forceDrop toggles
+
+
+diff --git a/src/main/java/net/minecraft/world/entity/Mob.java b/src/main/java/net/minecraft/world/entity/Mob.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/Mob.java
++++ b/src/main/java/net/minecraft/world/entity/Mob.java
+@@ -0,0 +0,0 @@ public abstract class Mob extends LivingEntity {
+             }
+ 
+             if (this.tickCount > 100) {
++                this.forceDrops = true; // Paper
+                 this.spawnAtLocation((ItemLike) Items.LEAD);
++                this.forceDrops = false; // Paper
+                 this.leashInfoTag = null;
+             }
+         }
+diff --git a/src/main/java/net/minecraft/world/entity/ai/behavior/WorkAtComposter.java b/src/main/java/net/minecraft/world/entity/ai/behavior/WorkAtComposter.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/ai/behavior/WorkAtComposter.java
++++ b/src/main/java/net/minecraft/world/entity/ai/behavior/WorkAtComposter.java
+@@ -0,0 +0,0 @@ public class WorkAtComposter extends WorkAtPoi {
+                 ItemStack itemstack = inventorysubcontainer.addItem(new ItemStack(Items.BREAD, j));
+ 
+                 if (!itemstack.isEmpty()) {
++                    entity.forceDrops = true; // Paper
+                     entity.spawnAtLocation(itemstack, 0.5F);
++                    entity.forceDrops = false; // Paper
+                 }
+ 
+             }
+diff --git a/src/main/java/net/minecraft/world/entity/animal/Panda.java b/src/main/java/net/minecraft/world/entity/animal/Panda.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/animal/Panda.java
++++ b/src/main/java/net/minecraft/world/entity/animal/Panda.java
+@@ -0,0 +0,0 @@ public class Panda extends Animal {
+         }
+ 
+         if (!this.level.isClientSide() && this.random.nextInt(700) == 0 && this.level.getGameRules().getBoolean(GameRules.RULE_DOMOBLOOT)) {
++            this.forceDrops = true; // Paper
+             this.spawnAtLocation((ItemLike) Items.SLIME_BALL);
++            this.forceDrops = false; // Paper
+         }
+ 
+     }
+diff --git a/src/main/java/net/minecraft/world/entity/animal/SnowGolem.java b/src/main/java/net/minecraft/world/entity/animal/SnowGolem.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/animal/SnowGolem.java
++++ b/src/main/java/net/minecraft/world/entity/animal/SnowGolem.java
+@@ -0,0 +0,0 @@ public class SnowGolem extends AbstractGolem implements Shearable, RangedAttackM
+         this.level.playSound((Player) null, (Entity) this, SoundEvents.SNOW_GOLEM_SHEAR, shearedSoundCategory, 1.0F, 1.0F);
+         if (!this.level.isClientSide()) {
+             this.setPumpkin(false);
++            this.forceDrops = true; // Paper
+             this.spawnAtLocation(new ItemStack(Items.CARVED_PUMPKIN), 1.7F);
++            this.forceDrops = false; // Paper
+         }
+ 
+     }
+diff --git a/src/main/java/net/minecraft/world/entity/monster/piglin/Piglin.java b/src/main/java/net/minecraft/world/entity/monster/piglin/Piglin.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/monster/piglin/Piglin.java
++++ b/src/main/java/net/minecraft/world/entity/monster/piglin/Piglin.java
+@@ -0,0 +0,0 @@ public class Piglin extends AbstractPiglin implements CrossbowAttackMob, Invento
+     @Override
+     protected void finishConversion(ServerLevel world) {
+         PiglinAi.cancelAdmiring(this);
++        this.forceDrops = true; // Paper
+         this.inventory.removeAllItems().forEach(this::spawnAtLocation);
++        this.forceDrops = false; // Paper
+         super.finishConversion(world);
+     }
+