From c4d85b3f1d520e3736cc20b48049c1acf896da85 Mon Sep 17 00:00:00 2001
From: Stefan Schimanski <sts@lyx.org>
Date: Tue, 8 Jan 2008 10:29:47 +0000
Subject: [PATCH] * fix a crash during undo: cloned MathMacroTemplates need
 updated child insets which point back to the correct (cloned) template.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@22430 a592a061-630c-0410-9148-cb99ea01b6c8
---
 src/mathed/MathMacroTemplate.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/mathed/MathMacroTemplate.cpp b/src/mathed/MathMacroTemplate.cpp
index 0189e6ff4a..85301fbfe0 100644
--- a/src/mathed/MathMacroTemplate.cpp
+++ b/src/mathed/MathMacroTemplate.cpp
@@ -393,7 +393,11 @@ MathMacroTemplate::MathMacroTemplate(docstring const & str)
 
 Inset * MathMacroTemplate::clone() const
 {
-	return new MathMacroTemplate(*this);
+	MathMacroTemplate * inset = new MathMacroTemplate(*this);
+	// the parent pointers of the proxy insets above will point to
+	// to the old template. Hence, the look must be updated.
+	inset->updateLook();
+	return inset;
 }