$ git clone -n https://src.fedoraproject.org/rpms/octave-zmat.git /var/lib/mock/f40-build-2495739-61664/root/chroot_tmpdir/scmroot/octave-zmat
Cloning into '/var/lib/mock/f40-build-2495739-61664/root/chroot_tmpdir/scmroot/octave-zmat'...
$ git fetch origin ed5023f73a0d77c83e6f845a23c28886421cd995:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/octave-zmat
 * [new ref]         ed5023f73a0d77c83e6f845a23c28886421cd995 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ed5023f Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild