$ git clone -n https://src.fedoraproject.org/rpms/mapnik.git /var/lib/mock/f40-build-2278948-55297/root/chroot_tmpdir/scmroot/mapnik
Cloning into '/var/lib/mock/f40-build-2278948-55297/root/chroot_tmpdir/scmroot/mapnik'...
$ git fetch origin 287295a75c4e601ef077f8eead4bfaedd5d68e74:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mapnik
 * [new ref]         287295a75c4e601ef077f8eead4bfaedd5d68e74 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 287295a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild