This picture was taken on a modded server as its the easiest way to get a example.
To replicate, the creeper aura was placed in front of a wall of water.
http://i.imgur.com/OKUUvOQ.png
Another bug to notice from this is that the creeper aura doesn't display in front of the player, only when the rendering bugs happen.
Related issues
Comments


Zach Morris' comment is not true. Those are not just particle effects, they are in fact the charged creeper effect, which is rendered like armor on creepers. The server there is using invisible creepers teleported to the players' locations. As for needing vanilla evidence, there is plenty in MC-9553 and other reports which duplicate it.

Conor, which is why the ticket is closed. However, if it was the first ticket for this issue, it wouldn't be valid.

Because it was created on a modded server despite this obviously not being a modded bug.
those r just particle affects, blocks do not effect particles nor vise versa, and besides its modded server, u need vanilla evidence