It is interesting to see that McCarthy did steal from himself, he uses almost the exact same cue from "The Die is Cast" in the Generations soundtrack.
Other way around. Generations
I once saw a quote from McCarthy saying that he reused the Generations
cues to see if anyone was paying attention. Obviously a lot of us were. (Or maybe he meant he wanted to see if Berman was paying attention? Berman -- and Lauritson, I guess -- discouraged the composers from reusing themes and motifs, and maybe he was testing to see if they would even notice if he did. That's just speculation, though.)