Voidwalker Sacrafice Exploit

Minor exploit but can be used to advantage. As most of you know, the Voidwalker sacrifice doesn't sacrifice the Voidwalker itself anymore just a portion of the health. Well I found a bug that you can use the Sacrifice spell WITHOUT the Voidwalker losing his/her health.

Steps:

1. Summon Voidwalker
2. Mount up (Your Voidwalker should dissapear.)
3. Dismount (Your Voidwalker should spawn afterwards, but you will notice his health is about half what it should be. In a second or two it will go back to 100%.)
4. Quickly cast Sacrifice before his health goes back up.
5. Your Voidwalker's health now returns to 100% AND you have the Sacrifice buff!
6. ??? (I filled this in with AoE farming.)
7. Profit!