Fix boats/minecarts not dropping when destroyed

Diff to clone the item was lost, which meant that the spawned
item was air.

patches/server/Fix-item-duplication-and-teleport-issues.patch

@@ -28,7 +28,8 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
                  return null;
              }
              // CraftBukkit end
-             ItemEntity entityitem = new ItemEntity(world, this.getX(), this.getY() + (double) yOffset, this.getZ(), stack);
+-            ItemEntity entityitem = new ItemEntity(world, this.getX(), this.getY() + (double) yOffset, this.getZ(), stack);
++            ItemEntity entityitem = new ItemEntity(world, this.getX(), this.getY() + (double) yOffset, this.getZ(), stack.copy()); // Paper - copy so we can destroy original
 +            stack.setCount(0); // Paper - destroy this item - if this ever leaks due to game bugs, ensure it doesn't dupe
  
              entityitem.setDefaultPickUpDelay();

patches/server/Restore-vanilla-entity-drops-behavior.patch

@@ -80,7 +80,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
                  return null;
              }
              // CraftBukkit end
-             ItemEntity entityitem = new ItemEntity(world, this.getX(), this.getY() + (double) yOffset, this.getZ(), stack);
+             ItemEntity entityitem = new ItemEntity(world, this.getX(), this.getY() + (double) yOffset, this.getZ(), stack.copy()); // Paper - copy so we can destroy original
              stack.setCount(0); // Paper - destroy this item - if this ever leaks due to game bugs, ensure it doesn't dupe
  
 -            entityitem.setDefaultPickUpDelay();