Fix item dropping

paper-server/patches/sources/net/minecraft/server/level/ServerPlayer.java.patch

@@ -1447,7 +1447,7 @@
              double d = this.getEyeY() - 0.3F;
 +            // Paper start
 +            ItemStack tmp = droppedItem.copy();
-+            tmp.setCount(0);
++            droppedItem.setCount(0);
 +            droppedItem = tmp;
 +            // Paper end
              ItemEntity itemEntity = new ItemEntity(this.level(), this.getX(), d, this.getZ(), droppedItem);