A manifest row whose range could not be built (base "", head "error: ...") or replayed
(an OID the clone does not have) was counted in the "N of M PRs had a blocking finding"
denominator with no findings, and the run exited 0, so a replay that measured nothing
read as evidence that a rule never fires. Such rows now carry an "error" in replay.jsonl,
stay out of the totals and the denominator, are listed by number, and fail the run.
0017264c02