From ea623cac61f43baf3890c2c8a71c95d7ad453e28 Mon Sep 17 00:00:00 2001
From: Florian Jung <flo@windfisch.org>
Date: Tue, 27 Aug 2013 20:31:22 +0200
Subject: assertion fixes in undo and part m(

---
 muse2/muse/part.cpp | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

(limited to 'muse2/muse/part.cpp')

diff --git a/muse2/muse/part.cpp b/muse2/muse/part.cpp
index 9b869567..c46e7ab9 100644
--- a/muse2/muse/part.cpp
+++ b/muse2/muse/part.cpp
@@ -81,10 +81,11 @@ void Part::chainClone(Part* p)
 
 void Part::rechainClone()
 {
-    assert(_backupClone);
-    
-    this->chainClone(_backupClone);
-    _backupClone = NULL;
+    if(_backupClone)
+    {
+        this->chainClone(_backupClone);
+        _backupClone = NULL;
+    }
 }
 
 bool Part::isCloneOf(const Part* other) const
-- 
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