The Guardian Trait “Focused Mind” (20 point Major in the Valor tree) causes all Meditation skills to become instants. However, it appears the instant and non-instant (or traited and non-traited) versions of the Meditations are registered as separate utility skills. Using Meditation skills and then changing this trait to another trait will cause the skills to perform a “flip” animation and be usable again. If the skills are used again and the trait is returned, the skills will “flip” again and the original cooldowns will be visible. Changing the trait a third time will show the second set of cooldowns.
A short video to go along with this, maybe showing what I mean better than the above description:
http://www.youtube.com/watch?v=THDhlHKuEPw