I happened to have Gift of Life in effect (stamina booster) when I logged in the first time, and the conversion stripped all of my active spells. However, I still had a + next to Stamina and Concentration. I can't seem to get rid of it...logging out and back in didn't do it. I circled several times and that removed it (and my burden increased), but then I logged out and back in and the + came back. I tried casting the new Gift of Life and then releasing it, still the + remained. I trained Stamina, no dice. Relogged again after training, it's still there.
Thanks,
-Life Sustainer Karthor