It neither says nor means any such thing. It says what it says, not what you claim it "clearly means."
Everyone in purgatory has already been saved by Christ's Sacrifice on the Cross.
I believe I stated that. According to the Catechism you are saved from your "mortal" sin. But if one were to take the time to read just a few lines down it also states that you must pay a price for your venial sins. It's all in the Catechism. You undoubtedly will not wish to give an explanation on the Catechism either; simply saying that it doesn't mean what is written.