BUR #4273 has been approved by @evazion.
remove implication holding_egg -> holding_food
create implication holding_egg -> holding
Maybe it depends on the context of the image... I think the egg is not always seen as food, it may hatch into a living being.
I uploaded post #4263597 (a Pokémon post, where Ditto is holding an egg) and got a bit surprised to see the tag holding_food there.