Bugs in textures of villagers and zombie snow and swamp villagers

Hello, generating zombie villagers in the swamp I could realize that certain errors such as the classic plant on their head are seen above their hats according to their profession or that some villagers are missing the plant on their head, This problem is repeated with the snow villagers who some of them like the cartographer and others are missing their typical hat but when infected for some strange reason they recover it and part of these hats are also seen above some hats of their professions, curiously the only zombie villagers who are not affected by this error of the plant or snow cap above any accessory is with the farmer villager as this if it is seen correctly, if we compare with Java this error is not repeated.  

In the following images there are some specimens but only of the swamp villagers.