Properly forward DispenseEvent #getItem to saddle

Correctly use the DispenseEvent's #getItem ItemStack when placing the
saddle on entities during a dispense behaviour instead of the original
stack.

patches/server/0957-Properly-track-the-changed-item-from-dispense-events.patch

@@ -5,7 +5,7 @@ Subject: [PATCH] Properly track the changed item from dispense events
 
 
 diff --git a/src/main/java/net/minecraft/core/dispenser/DispenseItemBehavior.java b/src/main/java/net/minecraft/core/dispenser/DispenseItemBehavior.java
-index f96734580a29e0436ac808e41c6cbc3f35eff5f5..9d71388c6e8ff56228afbf8cb18c37f861d0b246 100644
+index f96734580a29e0436ac808e41c6cbc3f35eff5f5..7bf250bba4179a506c0a39b7866a9389552d2905 100644
 --- a/src/main/java/net/minecraft/core/dispenser/DispenseItemBehavior.java
 +++ b/src/main/java/net/minecraft/core/dispenser/DispenseItemBehavior.java
 @@ -134,10 +134,14 @@ public interface DispenseItemBehavior {
@@ -36,6 +36,15 @@ index f96734580a29e0436ac808e41c6cbc3f35eff5f5..9d71388c6e8ff56228afbf8cb18c37f8
                  ArmorStand entityarmorstand = (ArmorStand) EntityType.ARMOR_STAND.spawn(worldserver, consumer, blockposition, MobSpawnType.DISPENSER, false, false);
  
                  if (entityarmorstand != null) {
+@@ -244,7 +249,7 @@ public interface DispenseItemBehavior {
+                             return stack;
+                         }
+                     }
+-                    ((Saddleable) list.get(0)).equipSaddle(itemstack1, SoundSource.BLOCKS);
++                    ((Saddleable) list.get(0)).equipSaddle(CraftItemStack.asNMSCopy(event.getItem()), SoundSource.BLOCKS); // Paper - track changed items in dispense event
+                     // CraftBukkit end
+                     if (shrink) stack.shrink(1); // Paper - actually handle here
+                     this.setSuccess(true);
 @@ -414,6 +419,7 @@ public interface DispenseItemBehavior {
                  int y = blockposition.getY();
                  int z = blockposition.getZ();