$ git clone -n https://src.fedoraproject.org/rpms/R-sp.git /var/lib/mock/f37-build-641542-71971/root/chroot_tmpdir/scmroot/R-sp
Cloning into '/var/lib/mock/f37-build-641542-71971/root/chroot_tmpdir/scmroot/R-sp'...
$ git reset --hard 96d1782a6508643e6ceb7be8f96e6fab737aa0a7
HEAD is now at 96d1782 disable vignettes