$ git clone -n https://src.fedoraproject.org/rpms/R-tkrplot.git /var/lib/mock/f33-build-562570-65833/root/chroot_tmpdir/scmroot/R-tkrplot
Cloning into '/var/lib/mock/f33-build-562570-65833/root/chroot_tmpdir/scmroot/R-tkrplot'...
$ git reset --hard cc9f89d2d1814fde2a1d3b0411351759956da7bf
HEAD is now at cc9f89d Update to latest version.