So, did the Justice Society travel back to 1945 and then stave off Ragnarok or nah...?

As we just saw the other day, 1986's Last Days of the Justice Society Special #1 temporarily wrote the Justice Society out of the DC Universe through a complicated chain of events stemming from Crisis on Infinite Earths, with the heroes travelling back in time to 1945 and then entering a rift in the sky to join an eternal battle to save the world. Adolf Hitler had used the Spear of Destiny to bring about Ragnarok, and the only way to keep the villains of Norse mythology from destroying the world was for the heroes to merge with the Asgardian gods and fight fire giant Surtur and company until the end of time. So that happened, right...?Sure. At the time. But this being DC Comics, nothing is safe from a retcon.In 1991's Sandman #26, the fifth chapter of the "Season of Mists" arc, writer Neil Gaiman* refers to the events of Last Days, shading them in such a way that honors that story but alters it in a way that freed up the Norse gods to appear in other stories, like his own.The plot of…