$ git clone -n https://src.fedoraproject.org/rpms/R-tweenr.git /var/lib/mock/f31-build-50871-27445/root/chroot_tmpdir/scmroot/R-tweenr
Cloning into '/var/lib/mock/f31-build-50871-27445/root/chroot_tmpdir/scmroot/R-tweenr'...
$ git reset --hard 428250db91f4e1148d5957642e8d1612ff435fb8
HEAD is now at 428250d Update to latest version.