$ git clone -n https://src.fedoraproject.org/rpms/gnuradio.git /var/lib/mock/f31-build-76860-31453/root/chroot_tmpdir/scmroot/gnuradio
Cloning into '/var/lib/mock/f31-build-76860-31453/root/chroot_tmpdir/scmroot/gnuradio'...
$ git reset --hard 6399e25430a7ed4ff5acf6706117323cb2a313aa
HEAD is now at 6399e25 Rebuilt for new uhd