The Minecraft snapshot 24w12a article mentions is_meat for allowing food to be given to wolves. However, the field being set to true doesn't seem to affect whether a wolf can eat an item stack, and code analysis indicates that is_meat doesn't exist at all; the functionality is instead tied to the minecraft:wolf_food item tag.
Note that minecraft:wolf_food is also briefly mentioned in the article within the list of added tags. Did Mojang mean to migrate from a tag to a component or a component to a tag? Were both implemented separately and one was simply merged over the other? In conclusion: did Mojang forgor?
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After consideration, the issue is being closed as Working as Intended.
Please note, that mechanics of the game may change between updates.
Things such as graphics, sounds, world creation, biomes, redstone, villagers, and animals may not work the same in current versions.
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