$ git clone -n https://src.fedoraproject.org/rpms/R-rlang.git /var/lib/mock/f33-build-626010-67604/root/chroot_tmpdir/scmroot/R-rlang
Cloning into '/var/lib/mock/f33-build-626010-67604/root/chroot_tmpdir/scmroot/R-rlang'...
$ git reset --hard c5a837cd70f241bef62318971a6bc5d93b827c89
HEAD is now at c5a837c Update to latest version.