Change Spec in Battlegrounds

Simply relog inside the battleground and upon logging in you will be given the spec that you were when you queued. Particularly useful for healing class or tanking classes.

On my priest I queued as dps and was waiting for the queue as holy flying around dal etc.
When it popped I was shadow upon entering the BG, I quickly relogged and returned as holy again.
Tested 4 times and seems to be fine

Let me know if this has been posted, I had a look and didn't see anything.