There is only two words to treat under "Uti Possidis"Who has it, keeps it,
I don't see Genoa having the manpower, officer cadre or naval might necessary to reverse this victory, even if the majority of Bonifacio's populace would rather be Genoese. They are simply too much of a spent force.
Also @Carp I know you said 18th century European politics weren't your strong suit but considering that the Corsican Greeks helped the Russians in Greece, as well as their Mediterranean interests & British interests in the Mediterranean and their early interest in Corsica; is Corsica going to find itself in the middle of a Mediterranean equivalent of The Great Game?
Between the Nostra Maria della Rosa and the Minerva, has Neptune caused more deaths in this war than all the direct killings by humans? Really goes to show how war's dangers are not all about the malice of men, and do not all stem from the peril of combat-but may arise from the same combination of petty quarrels, bad incentives, incompetence, and bad luck that characterize the rest of human existence.
Even in the 20th century, things could go pear-shaped.At sea, however, even the great powers had to pay their toll to Neptune.
Live by the larger war involving major European powers, Die by the larger war involving major European powersWhile the situation is very much to Corsica's benefit right now, the larger war involving the major powers could at any point absorb the 'Coral War', possibly creating an entirely new and bizarre situation.
So ironically if it wasn't for the institutions of Genoese rule, the Commissioner and the commander of the foreign troops, and the Bonifacini had successfully implemented a defense to the last bullet calling the Corsican bluff, then Bonifacio would have almost certainly remained Genoese, thanks to the French, as well as Genoa's relief flotilla and the sheer grind actually storming the breach.
So I wonder if Corsica could secretly offer to France that they'll lease Tabarka (or perhaps an island seized from the Genoese) to the French in return for their favor in the peace talks.