Two stable-release failures on rc.3-v0.21.6 (run 37753841932):
- nix: the stamped release source is a `path:` flake with no git metadata,
so self.rev is null, install-stamp.json carries no commit and the packaged
`hermes --version` reports "unknown". Pass the commit as `?rev=$GITHUB_SHA`
(verified on Nix 2.35: path:<tree>?rev=<sha> sets self.rev).
- docker: the versioned images were pushed under the final vX.Y.Z, which does
not exist until publish. rc.1 created `:v0.21.6`, and every later attempt hit
"versioned Docker manifest differs" against it. scripts/releases/docker.py
(published_digest, promote_stable) already reads the attempt-ref tag, so pass
claim-tag to both docker.yml calls.
818c13be1d