You're on a roll, gomer. No such thing occurred during Pope John Paul II's Papacy.
By the way, Einstein, co-redemptrix is Latin, the English translation being the woman with the Redeemer. In no way does said description of the Blessed Mother elevate her to a level equal to Jesus. However, the facts never get in the way of fools like you with slightly below room temp IQs ignorantly flapping their gums.
Oh dear... sould you insist on making a public display of your illiteracy? I mean... twice in one post...?!
"the idea of such sinlessness and ascension by Mary was unknown in the uniform writings of the church fathers"
Obviously you have'nt read St. St. John the Theologian (circa 80 A.D.):
http://www.newadvent.org/fathers/0832.htm
"the doctrine of Mary as a co-redemptrix from sin by your last pope"
No such thing happened! There was a petition by some to consider it - but Joh Paul II simply did not decree such a dogma!
http://www.newadvent.org/cathen/15459a.htm
??? "uniform writings of the church fathers"? What are those?
St. John Damascene is one of the more reputable sources discussing the Assumption, and he's clear that he's quoting an earlier account. St. Augustine excludes the Virgin from his discussion of original sin.
Didn't they make it into your "uniform writings"?