Alias holding trident

BUR #33331 has been rejected.

create alias holding_trident -> holding_polearm

Looks like all the other polearm tags are aliased.

BUR #33332 has been rejected.

create implication holding_trident -> trident
create implication holding_trident -> holding_polearm

Alternatively if we do want to keep trident separate.

This bulk update request is pending automatic rejection in 5 days.

BUR #34625 is pending approval.

mass update holding_trident -> trident

Good chunk of posts currently missing the trident tag (at least 400!), so want to make sure we fix that before it goes through.

This bulk update request has been rejected because it was not approved within 45 days.

The bulk update request #33331 (forum #317742) has been rejected by @DanbooruBot.

This bulk update request has been rejected because it was not approved within 45 days.

The bulk update request #33332 (forum #317743) has been rejected by @DanbooruBot.