$ git clone -n https://src.fedoraproject.org/rpms/python-nibabel.git /var/lib/mock/f45-build-31715-655/root/chroot_tmpdir/scmroot/python-nibabel
Cloning into '/var/lib/mock/f45-build-31715-655/root/chroot_tmpdir/scmroot/python-nibabel'...
$ git fetch origin 17bcb2a3a6180207514318179313b87a272cddf5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-nibabel
 * [new ref]         17bcb2a3a6180207514318179313b87a272cddf5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 17bcb2a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild