Villager Slowness/Speed Effect bug

When you summon a villager with slowness or speed, the villager isn't affected:
Commands:
/summon Villager ~ ~1 ~ {ActiveEffects:[

{Id:1,Amplifier:50,Duration:1000000}

]}
/summon Villager ~ ~1 ~ {ActiveEffects:[

{Id:2,Amplifier:50,Duration:1000000}

]}