$ git clone -n https://src.fedoraproject.org/rpms/fillets-ng.git /var/lib/mock/f40-build-790645-136628/root/chroot_tmpdir/scmroot/fillets-ng
Cloning into '/var/lib/mock/f40-build-790645-136628/root/chroot_tmpdir/scmroot/fillets-ng'...
$ git fetch origin f772d0e7c682035cff79b6d41a8824c71f0ffe9e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fillets-ng
 * [new ref]         f772d0e7c682035cff79b6d41a8824c71f0ffe9e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f772d0e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild