Talent bugs have plagued players since patch 3.1 hit, with its dual spec system, last Tuesday. Blizzard knows this better than anyone; unfortunately, it's going to take a content patch to fix a lot of the weirdness that has been transpiring. Fortunately, they're working to get that patch out the door as soon as possible. The way they've been talking, my money's on patch 3.1.1 coming probably tomorrow, or failing that, next week.
Eyonix just posted that "in the next upcoming minor content patch," all talents are going to be wiped, but not glyphs. So (as he reminds us) make sure you put the right talents with the right glyphs, or you'll have to respec/reglyph to fix it. I would recommend waiting until tomorrow morning on any respec plans you might have (unless they're for tonight's raid), because there's a good chance you'll get it done for free in the morning.