$ git clone -n https://src.fedoraproject.org/rpms/coin-or-Data-Netlib.git /var/lib/mock/f45-build-4339-331/root/chroot_tmpdir/scmroot/coin-or-Data-Netlib
Cloning into '/var/lib/mock/f45-build-4339-331/root/chroot_tmpdir/scmroot/coin-or-Data-Netlib'...
$ git fetch origin d6783a6e87e56be895e1fd1c322fd3eea995b045:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/coin-or-Data-Netlib
 * [new ref]         d6783a6e87e56be895e1fd1c322fd3eea995b045 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d6783a6 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild