fix #4667

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@24204 a592a061-630c-0410-9148-cb99ea01b6c8

diff --git a/src/insets/InsetCommand.cpp b/src/insets/InsetCommand.cpp
index 4b2830f625cc9c13943ba3380123d517bb733b4c..bbe81841338d323d46584a85032ed8db0f1e9df3 100644 (file)
--- a/src/insets/InsetCommand.cpp
+++ b/src/insets/InsetCommand.cpp
@@ -194,6 +194,8 @@ bool InsetCommand::string2params(string const & name, string const & in,
        InsetCommandParams & params)
 {
        params.clear();
+       if (in.empty())
+               return false;
        istringstream data(in);
        Lexer lex;
        lex.setStream(data);