$ git clone -n https://src.fedoraproject.org/rpms/gretl.git /var/lib/mock/f31-build-61447-28932/root/chroot_tmpdir/scmroot/gretl
Cloning into '/var/lib/mock/f31-build-61447-28932/root/chroot_tmpdir/scmroot/gretl'...
$ git reset --hard 406308bf66d085862449e32967fdc1d9b58a231b
HEAD is now at 406308b Update to 2019c