$ git clone -n https://src.fedoraproject.org/rpms/R-isoband.git /var/lib/mock/f41-build-820921-152384/root/chroot_tmpdir/scmroot/R-isoband
Cloning into '/var/lib/mock/f41-build-820921-152384/root/chroot_tmpdir/scmroot/R-isoband'...
$ git fetch origin b42cd257ed77049a935c5fce596e0b6e495a2456:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-isoband
 * [new ref]         b42cd257ed77049a935c5fce596e0b6e495a2456 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b42cd25 Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild