I was making an adventure map with commands, and searching in the Official Minecraft Wiki I found that shields can have Protection I-IV and Thorns I-III and Curse of Binding.
When I tried /enchant selecting my shield I couldn't add those enchantments, and then I added them using an anvil.
Actually I tried a lot of things, I also added Protection IV to a cookie with the anvil 😛
That's it. Cheers, and have a nice Christmas 🙂👍
This is not a bug. The wiki is false as you cannot put protection enchantments on shields with the use of the
enchantcommand, even in survival mode. Please not that the Official Minecraft wiki isn't run by Mojang, but it is owned by Curse.