$ git clone -n https://src.fedoraproject.org/rpms/borgbackup.git /var/lib/mock/f40-build-2274760-55026/root/chroot_tmpdir/scmroot/borgbackup
Cloning into '/var/lib/mock/f40-build-2274760-55026/root/chroot_tmpdir/scmroot/borgbackup'...
$ git fetch origin 8cd116dc7dd6d500d9a1179315f397d883ee8a3d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/borgbackup
 * [new ref]         8cd116dc7dd6d500d9a1179315f397d883ee8a3d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8cd116d Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild