Mobs can drop weapons,tools and armor pieces with full durability instead of being damaged.
How to reproduce:
1-Summon a mob that can hold weapons,tools and armor and wear them(Example zombie,skeleton,pillager...)
2-Keep summoning and killing them until they drop a weapon,tool or armor piece.
3-The items should be damage but they're not.
Thank you for your report! However, this issue has already been reported as MCPE-45953. If you have anything to say about the bug please comment there. Also, please search for an issue before creating a ticket for it. Have a great day! 🙂