Enchantment Bug

Put the summary of the bug you're having here

I get my enchant and it works like a boss:

I get unbreaking 3.:
I get the enchant and it has no effect on anything that I put it on, if you punch me it counts as one armor use, rather than 1/3 use

Steps to Reproduce:
1. enchant something with unbreaking
2. .have someone hit you, shoot you, blow you up...
3. .it uses one use and the enchant use practically useless