Why was The Elder Scrolls IV Oblivion rerated

The Reason it was rerated was because the found a peice of code in the game that was left there by an unhappy developer (who was later canned). The code, which requires a downloaded mod to be able to use, makes it so that all of the female characters are topless. Oblivion was origionally rated T because the code was invisible to all testers, and all players of the unmodded game, but because the code is technically in there, it was rerated.