$ git clone -n https://src.fedoraproject.org/rpms/octave-optim.git /var/lib/mock/f40-build-2112620-50671/root/chroot_tmpdir/scmroot/octave-optim
Cloning into '/var/lib/mock/f40-build-2112620-50671/root/chroot_tmpdir/scmroot/octave-optim'...
$ git fetch origin ef3a2fa49cf5091464b1aec01cf959563c2f315f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/octave-optim
 * [new ref]         ef3a2fa49cf5091464b1aec01cf959563c2f315f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ef3a2fa Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild