I remember watching "Moon Raker" on a VHS rental in the mid 1980's when I was in elementary school. Mom didn't care for Bond's womanizing, but she was watching it with me. When Dolly slowly smiled and showed some metal on her teeth to match Jaws, mom let out a good laugh and commented on it. This is exactly what the writers wanted, trying to keep the female audience engaged in an otherwise overly male dominated movie. This was a 2 part joke, being Dolly's height contrasted to Jaws, and Dolly matching teeth with Jaws. A one part joke of this nature is kinda weak, even way back then.
So what does the "Dolly Event" really mean??? Sometime after the mid 1980's, there was a temporal incident going back before "Moon Raker" was released by at least a year or two (possibly far more depending on the event) that changed history in a minor way. Or maybe there was a "Universe Consolidation Event" that was sloppy.
It's been a long time since I've seen "Moon Raker" in full, but I didn't quite remember Dolly's "other attribute"... but this was pre-pubescent me. Maybe "Braces Dolly" was swapped for "Current Dolly" for that reason. I mean, she is a Bond Girl, and they're known for having certain attributes...
Getting back to time manipulation, this does fall within the various active Montauk experiments. Maybe this was a leftover experiment and one of the mad scientists decided he was going to have a little fun with the fanboys. Maybe this was a backwards time jump to further correct something that went wrong at Montauk that was causing some problems in the "then present".
I also remember Mandela. I think I was in middle school when I learned that he died. Years later he was in the news again, and I distinctly remembering "I thought he was dead". So whatever his temporal incident was, I went through it... twice? Maybe a war broke out in the region that got out of control, and maybe there was a backwards time jump to keep Mandela alive because he did something to prevent it.