$ git clone -n https://src.fedoraproject.org/rpms/biniax.git /var/lib/mock/f39-build-1530809-36198/root/chroot_tmpdir/scmroot/biniax
Cloning into '/var/lib/mock/f39-build-1530809-36198/root/chroot_tmpdir/scmroot/biniax'...
$ git fetch origin 4e0c516ab7332d91cef9f8b2dedd5afb99b32d1e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/biniax
 * [new ref]         4e0c516ab7332d91cef9f8b2dedd5afb99b32d1e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4e0c516 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild