the commands to summon a mob are broken like i tell it to summon a villager as baby 

and i get an adult in kid villager cloths

i summoned a wolf tamed before the hotfix for paintings and it gave me a wolf with a collar  not tamed to any player now just a untamed un tameable wolf  

the music command did not change my music 

and the command to summon a ravenger with a rider spawned him with no rider