$ git clone -n https://src.fedoraproject.org/rpms/fftw.git /var/lib/mock/f31-build-50399-27410/root/chroot_tmpdir/scmroot/fftw
Cloning into '/var/lib/mock/f31-build-50399-27410/root/chroot_tmpdir/scmroot/fftw'...
$ git reset --hard 58ddace121698bd7fe37ff42152157af74663f2e
HEAD is now at 58ddace Rebuild for openmpi 3.1.3