$ git clone -n https://src.fedoraproject.org/rpms/tinydir.git /var/lib/mock/f40-build-2331017-59043/root/chroot_tmpdir/scmroot/tinydir
Cloning into '/var/lib/mock/f40-build-2331017-59043/root/chroot_tmpdir/scmroot/tinydir'...
$ git fetch origin b2a7ef7acea13ae6f9b98a0ad999e398f40bbbaa:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tinydir
 * [new ref]         b2a7ef7acea13ae6f9b98a0ad999e398f40bbbaa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b2a7ef7 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild