Potions with /give command break super easily

I used a /give command generator for 1.8 to spawn a potion into a 1.9 multiplayer server.

What I expected to happen was...:
I would get a splash potion with every effect for 1 second.

What actually happened was...:
I got an enchanted, textureless block that I was able to drink and appeared huge while holding it. It registered as having "no entity" when dropped on the ground.

Steps to Reproduce:
1. I generated a command (below)
2. I used a command block
3. I got an "unknown item" with no texture.

Personally I think if you are able to generate untextured entities, then you should be able to specify a texture for them in a custom resource pack. Useless blocks/items are really useful to map-makers/texturers so that we can 3D model them into a cool weapon without having to lose an item in the game already.

./give @p potion 1 16386 {
CustomPotionEffects: [

{ Id: 1, Amplifier: 0, Duration: 20 }

,

{ Id: 2, Amplifier: 0, Duration: 20 }

,

{ Id: 3, Amplifier: 0, Duration: 20 }

,

{ Id: 4, Amplifier: 0, Duration: 20 }

,

{ Id: 5, Amplifier: 0, Duration: 20 }

,

{ Id: 6, Amplifier: 0, Duration: 20 }

,

{ Id: 7, Amplifier: 0, Duration: 20 }

,

{ Id: 8, Amplifier: 0, Duration: 20 }

,

{ Id: 9, Amplifier: 0, Duration: 20 }

,

{ Id: 10, Amplifier: 0, Duration: 20 }

,

{ Id: 11, Amplifier: 0, Duration: 20 }

,

{ Id: 12, Amplifier: 0, Duration: 20 }

,

{ Id: 13, Amplifier: 0, Duration: 20 }

,

{ Id: 14, Amplifier: 0, Duration: 20 }

,

{ Id: 15, Amplifier: 0, Duration: 20 }

,

{ Id: 16, Amplifier: 0, Duration: 20 }

,

{ Id: 17, Amplifier: 0, Duration: 20 }

,

{ Id: 18, Amplifier: 0, Duration: 20 }

,

{ Id: 19, Amplifier: 0, Duration: 20 }

,

{ Id: 20, Amplifier: 0, Duration: 20 }

,

{ Id: 21, Amplifier: 0, Duration: 20 }

,

{ Id: 22, Amplifier: 0, Duration: 20 }

,

{ Id: 23, Amplifier: 0, Duration: 20 }

],
display:

{ Name: "The Blue Milk", Lore: [ "Don't drink the blue milk..." ] }

}