Is it not supposed to? Healing spells while you're in cat or bear generally do that I thought.
Ah wait...MoP beta forum. Are they trying to change this in MoP?
And apparently it's been reported already:
http://us.battle.net/wow/en/forum/topic/4253896208
http://us.battle.net/wow/en/forum/topic/4427665423
http://us.battle.net/wow/en/forum/topic/4362521439#2