$ git clone -n https://src.fedoraproject.org/rpms/xsp.git /var/lib/mock/f39-build-1763392-41501/root/chroot_tmpdir/scmroot/xsp
Cloning into '/var/lib/mock/f39-build-1763392-41501/root/chroot_tmpdir/scmroot/xsp'...
$ git fetch origin a4dde6819244e46efe4645fb58cac85d9dbb54c9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xsp
 * [new ref]         a4dde6819244e46efe4645fb58cac85d9dbb54c9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a4dde68 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild