There was a fan edit hybrid which was my preferred version as the Donner one isn’t finished. I rather like the Lester one too but Hackman being hacked off meant that version is sort of unfinished as well (obvious body double was obvious).
Donner Cut Redux by Booshman is my preferred version.
https://ifdb.fanedit.org/superman-ii-the-richard-donner-cut-redux/
Neither Memory Kiss nor Time-Reversal. Lois is allowed to remember who Clark is, and her comment that he is “super” at the climax of the film is not coincidental on her part.
…what body double? It is not obvious to me.