$ git clone -n https://src.fedoraproject.org/rpms/R-base64enc.git /var/lib/mock/f38-build-724044-99309/root/chroot_tmpdir/scmroot/R-base64enc
Cloning into '/var/lib/mock/f38-build-724044-99309/root/chroot_tmpdir/scmroot/R-base64enc'...
$ git reset --hard 54b87495ae7339b060b12646de9e3715450cfef0
HEAD is now at 54b8749 R-maint-sig mass rebuild