$ git clone -n https://src.fedoraproject.org/rpms/xtrkcad.git /var/lib/mock/f40-build-793171-138798/root/chroot_tmpdir/scmroot/xtrkcad
Cloning into '/var/lib/mock/f40-build-793171-138798/root/chroot_tmpdir/scmroot/xtrkcad'...
$ git fetch origin 19230baa63f07c9cce4ad09832098258bbf93c71:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xtrkcad
 * [new ref]         19230baa63f07c9cce4ad09832098258bbf93c71 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 19230ba Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild