$ git clone -n https://src.fedoraproject.org/rpms/R.git /var/lib/mock/f31-build-95618-32697/root/thebuilddir/tmp/scmroot/R
Cloning into '/var/lib/mock/f31-build-95618-32697/root/thebuilddir/tmp/scmroot/R'...
$ git reset --hard 02916c034f7685fb8b53f70036c2a56d1792931e
HEAD is now at 02916c0 3.6.1