Since the game’s early days, baseball mythology has been constructed — often deliberately — to set itself apart. But sometimes things happen that demonstrate otherwise, and reality pokes through. One of those things unfolded this week when Commissioner Rob Manfred decided that permanent bans from baseball expire upon the death of the banned player. In a single moment, he changed the possible posthumous career trajectory of two preposterously talented ballplayers — Pete Rose and “Shoeless Joe” Jackson.