Helmets/hats (items in the helmet slot) are aligned differently on villagers and zombie villagers than on illagers and wandering traders

Can you provide a texture in which to reproduce this.

Can reproduce with blocks (carved pumpkin) via /replaceitem.

Thank you @unknown I didn't think of using carved pumpkins

Can confirm in 20w49a. Here's some commands to help reproduce this issue.

/summon villager ~ ~ ~ {NoAI:1}
/summon wandering_trader ~ ~ ~ {NoAI:1}
/item entity @e[type=villager,sort=nearest,limit=1] armor.head replace minecraft:carved_pumpkin
/item entity @e[type=minecraft:wandering_trader,sort=nearest,limit=1] armor.head replace minecraft:carved_pumpkin

Can confirm in 21w03a.

Here's the updated command usage of /item for the last two reproduction steps:

/item replace entity @e[type=minecraft:villager,sort=nearest,limit=1] armor.head with minecraft:carved_pumpkin
/item replace entity @e[type=minecraft:wandering_trader,sort=nearest,limit=1] armor.head with minecraft:carved_pumpkin

Can confirm in 23w44a and 1.20.2

Affects 1.20.6 and snapshot 24w18a

Affects 1.21