Compares two commit ordering keys: lower sourceEpoch first, then lower commitDigest. Negative when a orders before b. This is for branch choice only; the stored message id used to mark a losing commit stays separate.
a
b
Compares two commit ordering keys: lower sourceEpoch first, then lower commitDigest. Negative when
aorders beforeb. This is for branch choice only; the stored message id used to mark a losing commit stays separate.