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-rw-r--r--Master/texmf-dist/tex/latex/beamer/beamerbasetheorems.sty3
1 files changed, 2 insertions, 1 deletions
diff --git a/Master/texmf-dist/tex/latex/beamer/beamerbasetheorems.sty b/Master/texmf-dist/tex/latex/beamer/beamerbasetheorems.sty
index 7cf3519156d..bc0d95ea381 100644
--- a/Master/texmf-dist/tex/latex/beamer/beamerbasetheorems.sty
+++ b/Master/texmf-dist/tex/latex/beamer/beamerbasetheorems.sty
@@ -1,5 +1,6 @@
% Copyright 2003--2007 by Till Tantau
% Copyright 2010 by Vedran Mileti\'c
+% Copyright 2017 by Joseph Wright
%
% This file may be distributed and/or modified
%
@@ -55,7 +56,7 @@
}
\newcommand<>\beamer@begintheorem[1][]{%
- \beamer@ifempty{#1}
+ \ifblank{#1}
{\def\inserttheoremaddition{}}
{\def\inserttheoremaddition{#1}}
\usebeamertemplate{theorem begin}#2}