Not sure if it is intentional, but the cleric Talent Proc from Armor of Faith, Fist of the Heaven, interrupts the other Cleric stuns. ex. If i have a 7sec stun (think its called Benediction) on a mob, and Fist of the Heaven procs it will do its insta stun but wake the mob up from the longer stun. Might be an intentional mechanic, so sorry if this is not a bug, just annoying hehe.

Not exactly intended, but I was too lazy to code it in a smarter way. Hum... I'll have to think about how to fix this.