Is RAGE (spell) changed or bugged?

[Qnevven]

Nothing to see here - move along - just some paranoid player
Hello
Maybe i'm just paranoid or missed some release notes regarding this spell.
Yesterday I've noticed that casting rage spell on party has an additional effect - it lowers my fortification by 10%
Is this WAI? The spell description says nothing of the sort - ddowiki has not updated the spell page either.

I tried to search forums on the subject but found no results that would explain this change and therefore i'm asking you guys - is this:
a) bug
b) announced change (please, give me a link / dev quote)
c) ninja nerf

this spell combined with my bard's song of recklessness gives a significant disadvantage (-20% fortification total) and most often means suicide on EE difficulties.

[cru121]

Tunnel Vision: Passive Bonus: While raged, melee attacks deal +1d[8/10/12] extra untyped damage. In addition, you gain +[1/2/3] intimidate and +[1/2/3] will saves. You also suffer a -5 Penalty to Armor Class and suffer a 10% penalty to fortification while raged.

[Qnevven]

doh - turns out I AM paranoid...

yeah - i have tunnel vision in a twist

*facepalm*