$ git clone -n https://src.fedoraproject.org/rpms/rdiff-backup.git /var/lib/mock/f40-build-764715-123140/root/chroot_tmpdir/scmroot/rdiff-backup
Cloning into '/var/lib/mock/f40-build-764715-123140/root/chroot_tmpdir/scmroot/rdiff-backup'...
$ git fetch origin 179062fd36f3847c28f253144329b57346aa6b0c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rdiff-backup
 * [new ref]         179062fd36f3847c28f253144329b57346aa6b0c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 179062f Rebuild for pyinstall CVE-2023-49797 BZ2253844