fix #4713

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@24158 a592a061-630c-0410-9148-cb99ea01b6c8

diff --git a/src/mathed/InsetMathNest.cpp b/src/mathed/InsetMathNest.cpp
index 1872799a3869ca585c7609fef91ff7761cc9459a..8874b5b74050dd83110e5b7b3646d05c8c4bf50a 100644 (file)
--- a/src/mathed/InsetMathNest.cpp
+++ b/src/mathed/InsetMathNest.cpp
@@ -1074,7 +1074,8 @@ void InsetMathNest::doDispatch(Cursor & cur, FuncRequest & cmd)
                else {
                        MathData ar;
                        asArray(cmd.argument(), ar);
-                       if (ar.size() == 1 && ar[0]->asNestInset())
+                       if (ar.size() == 1 && ar[0]->asNestInset()
+                                       && ar[0]->asNestInset()->nargs())
                                handleNest(cur, ar[0]);
                        else
                                cur.niceInsert(cmd.argument());