Spells: Clarity does not flag you for PvP

[Tycko]

Today i buffed someone with a HP buff on my cleric, and i was told i am eligible to be attacked by X-XX levels. Then i immediatly cast clarity on them with my enchanters and no message was given. On the 31 cleric the person i buffed went from blue to yellow. On the 30 enchanter the person remained blue. This was in West Commons.

I would assume clarity should be considered a friendly buff that should flag you. Otherwise disregard.