If you summon a creaking in the snapshot listed above with the Winter Drop datapack (built in), and summon a creaking with the Pale Oak Log and Creaking Heart, with no spawn eggs, and then summon an Iron Golem, it will try to attack the Creaking. This is because the Creaking is tagged "Hostile", and Iron Golems attack all mobs with that tag. This does not count with the /tag command.