Steps to reproduce:

1. create a world in creative
2. put on some armor
3. switch to survival
4. execute /kill
5. respawn
6. the armor isn't at the place where i died

Expected behavior: The items are dropped when i die

Notes:

• destroyed is everything you wear, not only armor (for example elytra, mob heads)
• even the item you have in offhand slot is destroyed
• sometimes one piece of armor survives, but is vary damaged
• items you have in your inventory, but not in armor slot or offhand slot, are not destroyed
• items disappear no matter how are you killed (/kill, fall damage, monster kills you, etc.)