$ git clone -n https://src.fedoraproject.org/rpms/golang-github-cockroachdb-cockroach-go.git /var/lib/mock/f40-build-2581110-62386/root/chroot_tmpdir/scmroot/golang-github-cockroachdb-cockroach-go
Cloning into '/var/lib/mock/f40-build-2581110-62386/root/chroot_tmpdir/scmroot/golang-github-cockroachdb-cockroach-go'...
$ git fetch origin e8dff56993cdbc9992293cae332434e25217eac9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-cockroachdb-cockroach-go
 * [new ref]         e8dff56993cdbc9992293cae332434e25217eac9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e8dff56 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild