$ git clone -n https://src.fedoraproject.org/rpms/ghemical.git /var/lib/mock/f38-build-side-42-init-devel-771829-27758/root/chroot_tmpdir/scmroot/ghemical
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-771829-27758/root/chroot_tmpdir/scmroot/ghemical'...
$ git fetch origin 18ac0bd0da907fd4dda0fc66d2a478e2353a69fe:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghemical
 * [new ref]         18ac0bd0da907fd4dda0fc66d2a478e2353a69fe -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 18ac0bd Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild