$ git clone -n https://src.fedoraproject.org/rpms/byteman.git /var/lib/mock/f38-build-side-42-init-devel-726178-27324/root/chroot_tmpdir/scmroot/byteman
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-726178-27324/root/chroot_tmpdir/scmroot/byteman'...
$ git fetch origin 623a06f45035e42ffb85b0f04f3e9fbb62b604a9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/byteman
 * [new ref]         623a06f45035e42ffb85b0f04f3e9fbb62b604a9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 623a06f Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild