$ git clone -n https://src.fedoraproject.org/rpms/imath.git /var/lib/mock/f39-build-1495849-34545/root/chroot_tmpdir/scmroot/imath
Cloning into '/var/lib/mock/f39-build-1495849-34545/root/chroot_tmpdir/scmroot/imath'...
$ git fetch origin 4cd3318d3a9d30ffdfab146f7c82a3c86015a791:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/imath
 * [new ref]         4cd3318d3a9d30ffdfab146f7c82a3c86015a791 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4cd3318 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild