$ git clone -n https://src.fedoraproject.org/rpms/tomboy.git /var/lib/mock/f38-build-side-42-init-devel-1042462-29760/root/chroot_tmpdir/scmroot/tomboy
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1042462-29760/root/chroot_tmpdir/scmroot/tomboy'...
$ git fetch origin 65a324418cddea512582bb41488c80c738e7d8b0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tomboy
 * [new ref]         65a324418cddea512582bb41488c80c738e7d8b0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 65a3244 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild