like the first figure in the ZAB paper described, say we have node A B C, A is leader now
all 3 nodes see proposals P1, P2, an all acked both, A sees acks for P1, and commits it, but right after this A dies. now B is elected, B does not see any commit, so (according to my possibly wrong understanding from the code) B throws away P1 P2, and starts a new epoch. is this the current behavior of code? but then the commit of P1 on A is lost? Thanks Yang
