$ git clone -n https://src.fedoraproject.org/rpms/golang-github-mroach-rom64.git /var/lib/mock/f38-build-side-42-init-devel-579229-26020/root/chroot_tmpdir/scmroot/golang-github-mroach-rom64
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-579229-26020/root/chroot_tmpdir/scmroot/golang-github-mroach-rom64'...
$ git fetch origin e677694c31774e11ead1bc297b29b9900a3eef5a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-mroach-rom64
 * [new ref]         e677694c31774e11ead1bc297b29b9900a3eef5a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e677694 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild