[tex-live] TL2013: Biber not working with labels containing accents

[Joseph Wright]

Hello all,

I'm not sure if this is a change in Biber or one linked to TL2013, but
with the current pretest I find that Biber doesn't find the database
entry with example

%!TeX program = LuaLaTeX

\documentclass{article}
\usepackage{filecontents}
\begin{filecontents}{\jobname.bib}
@ARTICLE{Savéant2012,
  author = {Costentin, Cyrille and Drouet, Samuel and Robert, Marc
    and Jean-Michel Savéant},
  title = {{A} {L}ocal {P}roton {S}ource {E}nhances {CO}2 {E}lectroreduction
	to {CO} by a {M}olecular {F}e {C}atalyst },
  journaltitle = {Science},
  year = {2012},
  volume = {338},
  number = {6103},
  pages = {90-94},
}
\end{filecontents}
\usepackage[backend=biber]{biblatex}
\bibliography{\jobname}
\begin{document}

\cite{Savéant2012}
\printbibliography

\end{document}

while all is fine with TL2012. Do other people see this (I'm using
TL2013 on the Mac, updated today)? Is so, is this a TL issue or a Biber one?
-- 
Joseph Wright