$ git clone -n https://src.fedoraproject.org/rpms/R-corpus.git /var/lib/mock/f38-build-725313-99605/root/chroot_tmpdir/scmroot/R-corpus
Cloning into '/var/lib/mock/f38-build-725313-99605/root/chroot_tmpdir/scmroot/R-corpus'...
$ git reset --hard df504b1ca0c72184f42e17a3c060e3ed9b6ece4d
HEAD is now at df504b1 Ignore vignettes