The functional chain pins the test harness to the revision recorded in
.config/functional-script-revision.txt, which is only refreshed by
release syncs - it went stale on Sep 16 and the nightly chain has been
replaying a Sep-17-era harness ever since. Last night that meant:
the performance lane died on a dpkg conffile prompt (fix merged as
#88 but never reached the chain), the FT lane died on 'unknown option:
--results-file' (harness/workflow version mismatch), and the
STS-105 signing fix (#94) sat untested.
When the pinned revision's commit is older than 24 hours, fall back to
auto-testing main HEAD so the chain always runs the current harness.
Any staleness-probe failure keeps the pinned revision (fail-safe).
The revision file stays in place as the audit trail and the release
sync continues to manage it.
cxymds