$ git clone -n https://src.fedoraproject.org/rpms/tftp.git /var/lib/mock/f40-build-2330905-59034/root/chroot_tmpdir/scmroot/tftp
Cloning into '/var/lib/mock/f40-build-2330905-59034/root/chroot_tmpdir/scmroot/tftp'...
$ git fetch origin 4ae6d1f946c1ff2ae56f67553eecebd6efb787a5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tftp
 * [new ref]         4ae6d1f946c1ff2ae56f67553eecebd6efb787a5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4ae6d1f Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild