I was just messing about on my mage a bit (for the first time in 6 months), hadn't even set up all of my keybinds, when I noticed something; I had just duelled someone, and the clearcasting 30% crit chance buff was still on me after clearcasting faded.
http://img291.imageshack.us/my.php?image=wowscrnshot101708161533ju2.jpg
Anyone else had this (or any other mage related bug) happen to them?