$ git clone -n https://src.fedoraproject.org/rpms/libmad.git /var/lib/mock/f39-build-1457913-33023/root/chroot_tmpdir/scmroot/libmad
Cloning into '/var/lib/mock/f39-build-1457913-33023/root/chroot_tmpdir/scmroot/libmad'...
$ git fetch origin 79c3142389d33f446c03ad7483af51b56ce54f54:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libmad
 * [new ref]         79c3142389d33f446c03ad7483af51b56ce54f54 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 79c3142 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild