$ git clone -n https://src.fedoraproject.org/rpms/maxima.git /var/lib/mock/f40-build-2298283-56512/root/chroot_tmpdir/scmroot/maxima
Cloning into '/var/lib/mock/f40-build-2298283-56512/root/chroot_tmpdir/scmroot/maxima'...
$ git fetch origin fe64cd2d3448e4c07e08651a58e7f481c7309478:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/maxima
 * [new ref]         fe64cd2d3448e4c07e08651a58e7f481c7309478 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fe64cd2 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild