Noahaha
blindmod
well then I guess that's an issue. The regulations say the fix can't give you an extra advantage, but if you were going to get an OLL skip anyway, then it technically isn't an advantage. Don't know if an extra regulation could properly cover this issue...
It's an issue if you would get 2-corners twisted, but instead you get one and it ends up being an OLL skip. I think that a twisted corner without a pop should be a DNF since it's very easy to twist corners by "accident". I don't know if anyone else remembers this, but at Yale Fall 2012 there was a head to head and Rowe's cube was scrambled with a twisted corner. IIRC he got a sub-10 anyway and no one could tell that he fixed a corner twist.