I'd guess that in the case of hard cc's like Stunned or Frozen, the game just doesn't register the same status again. I can't recall if there's any source of hard cc that has a duration longer than 1 turn, so it's hard to verify this. If you throw water at a stunned enemy to apply Wet, then throw more shock damage at them, you won't see them get stunned again. Of course, if both sources have 1-turn duration, then it makes no difference. Also because hard cc's pretty much always have 1-turn duration, so there isn't any problem. Blind and Petrified are the exception because there are aura sources for them, and the duration is not 1 turn.
I think in the case of Blind/Petrified, incoming Blind/Petrified should not be ignored.
Last edited by Try2Handing; 15/09/18 01:39 PM.