Splash potion are not working with command and with new snapshot 15w46a creative inventory splash potions are not working.

i was using a command to summon splash potion with custom effects however i found out that whenever i summon a splash potion of any kind i get a blue potion summoned with no effects. then i opened creative inventory and took a splash potion in inventory it has color but when i threw it i see only a blue potion with no effects.