zombies converting into drowned will drop all held items

When converting into a drowned, zombies holding items or wearing armor are guaranteed to drop these items. This is an issue in downed farms, as a downed that is able to pick up loot will pick up these items, and drop them again once killed in the farm's killing section. This will cause chests to fill up with junk armor very quickly. Farm design: https://www.youtube.com/watch?v=khThUYIQQHo