Yes, just like Pius IX converted and was the 2nd longest pope to reign. He did a total 180 and did much good.
Yes, and that is precise why freemasons need to Cardinal Siri to accept the office of papacy after being elected. And to resign invalidly under threat, duress which was invalid. And invalid pope, false pope would not receive those graces that are unique to the office of papacy. Cardinal Tisserant knew that and some others also were Canon lawyers, very good theologians.
White smoke for 5 minutes is longer that it took in some conclaves before that, that pope is elected and everything was known.
Roncalli was elected as a transitional pope, and one of the first thing he did is to promote archbishop Montini to a cardinal. And in 1959. he already was publicly talking and making plans to Vatican II council.
Our Lady of Fatima mentions that the Third secret has to be revealed by the 1960., not later. This has to be one of the most important reasons for that year She told.
All of the cardinals were ordained and consecrated in the same, valid rite.