How does that fit with my last test? That seemed to show, to me, that the AI broke off all sieges (note that I did not visually confirm this, it's just that they ceased to expand into each other and only took a few Rebels). That's even with a human playing and after the diplomatic scene had been given 20 turns to mature (although the human was passive in those first 20 turns).
Also, although without save/loads the Rebel territories are a larger part of the total territories taken in the first 20 turns, there were more provinces swapped in my 270-260, no save/load test than taken from Rebels. The proportion of Rebel territories to all territories taken approaches 100% as save/load interval is reduced. I personally believe that this is because the Rebel territories are easier to take (fewer defences, smaller defending armies, no supporting armies), but may be wrong there.
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