The bulk update request #12359 is pending approval.
change category offspring (129) -> invalid
Reason: There's no point to the tag (it either means it's the child of another character (which most are by default and we don't tag defaults), or it's something already covered by parent and child (lore)), and it's not worth a disambiguation. But since it has the possibility to be replaced with a valid tag, it's not getting aliased to invalid tag.