Whether the primary may commit a batch a lane executed speculatively.
The parent check is the whole ordering guarantee: a batch built on a generation the primary has
moved past is a lost update. An origination hazard is refused rather than conflicted, since a
retry cannot fix it.
Whether the primary may commit a batch a lane executed speculatively.
The parent check is the whole ordering guarantee: a batch built on a generation the primary has moved past is a lost update. An origination hazard is refused rather than conflicted, since a retry cannot fix it.