$ git clone -n https://src.fedoraproject.org/rpms/golang-github-zeebo-blake3.git /var/lib/mock/f38-build-side-42-init-devel-626392-26369/root/chroot_tmpdir/scmroot/golang-github-zeebo-blake3
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-626392-26369/root/chroot_tmpdir/scmroot/golang-github-zeebo-blake3'...
$ git fetch origin d91987b116c07f7cc59be3ea2342ede8f74d35e6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-zeebo-blake3
 * [new ref]         d91987b116c07f7cc59be3ea2342ede8f74d35e6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d91987b Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild