Untamed Nautilus & Zombie Nautilus Cannot Equip Saddle Using Commands

If a nautilus (or its undead version) is untamed, the command “/item replace entity @n[type=minecraft:nautilus] saddle with saddle“ fails to execute.

How to reproduce:

1. Summon an untamed nautilus or zombie nautilus.

2. Use command “/item replace entity @n[type=minecraft:nautilus] saddle with saddle” or “/item replace entity @n[type=minecraft:zombie_nautilus] saddle with saddle”.

3. It returns an error message “No targets accepted item [Saddle] into slot 106“

4. Tame them with pufferfish, and run the command. They are equipped with saddle successfully.