Before the Body booster glitch, I use an aura and body boost and then cc'ed. After I cc'ed, body boost was there while the aura was gone and after the body boost disappeared, I got all 3 advanced aura buffs (just the look on my character not the icons/effects).
I had all the stats from them. They way it happened was, the Bam died with the aura on me. When he left the map, the aura stayed.
I noticed that there can only be 2 kept permanently. The 3rd needs the Bam to use it regularly.