From 7af2e860c0ccb42d066b1b7a782cd458e08ec249 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Gr=C3=A9goire=20Jadi?= <gregoire.jadi@univ-nantes.fr>
Date: Wed, 10 Dec 2014 16:10:57 +0100
Subject: [PATCH] * beamerthemem.sty(frametitle): \protect the frametitle
 inside MakeLowercase

Without the \protect, we cannot use \cite, \ref or similar stuff in frametitle.
---
 beamerthemem.sty | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/beamerthemem.sty b/beamerthemem.sty
index 4f73928..dae5e12 100644
--- a/beamerthemem.sty
+++ b/beamerthemem.sty
@@ -201,7 +201,7 @@
 \setbeamertemplate{frametitle}{%
 \nointerlineskip
 \begin{beamercolorbox}[wd=\paperwidth,leftskip=0.3cm,rightskip=0.3cm,ht=2.5ex,dp=1.5ex]{frametitle}
-  \usebeamerfont{frametitle}\MakeLowercase{\insertframetitle}%
+  \usebeamerfont{frametitle}\MakeLowercase{\protect\insertframetitle}%
 \end{beamercolorbox}%
 \if@useTitleProgressBar
   \vspace{-.5em}