$ git clone -n https://src.fedoraproject.org/rpms/xaos.git /var/lib/mock/f40-build-2361618-60358/root/chroot_tmpdir/scmroot/xaos
Cloning into '/var/lib/mock/f40-build-2361618-60358/root/chroot_tmpdir/scmroot/xaos'...
$ git fetch origin fba83ddf22c34b2537ead5e466a7f534c1baa7c0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xaos
 * [new ref]         fba83ddf22c34b2537ead5e466a7f534c1baa7c0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fba83dd Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild