hyperref, lualatex and unicode bookmarks issue (garbled page numbers in AR for Linux)

I received an email from Heiko suggesting that I try auto pdfencoding which worked indeed. So, the solution is:

\hypersetup{pdfencoding=auto}

And corrected MWE from above:

\documentclass{article}    
\usepackage{hyperref} 
\hypersetup{%
    pdfencoding=auto,
    pdfauthor={Author Test ČĆŽĐŠ},
    pdftitle={Title test, čćžđš}
    }

\begin{document}  

\section{Test 1 čćžđš}    
Some text.\clearpage  

\section{Test 2 šđžćč}    
Some text.

\end{document}

Complete Heiko's answer can be found on comp.text.tex.

Even with pdfencoding=auto, I had trouble with either the bookmarks or the metadata or the page numbers. But all three come out perfectly if I use the navigator package rather than hyperref.