When a left-handed Piglin/Piglin Brute zombifies it does not save the tag

1 /summon piglin ~ ~ ~

2 give a item to the piglin
3 wait her convert into zombified piglin
4 her not hold the item more in your left hand

the same problem happens with right-handed Piglins/Piglin brute sometimes when they zombify they get the tag

even if they are not left-handed