$ git clone -n https://src.fedoraproject.org/rpms/paraview.git /var/lib/mock/f40-build-781242-131566/root/chroot_tmpdir/scmroot/paraview
Cloning into '/var/lib/mock/f40-build-781242-131566/root/chroot_tmpdir/scmroot/paraview'...
$ git fetch origin ff281d31b69fb3c42744017ecaffacf9f6eefbe6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/paraview
 * [new ref]         ff281d31b69fb3c42744017ecaffacf9f6eefbe6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ff281d3 Stop building for i686