# HG changeset patch
# User Chris Cannam
# Date 1416500311 0
# Node ID 4a2c150ecd679a637a0fdcdb262b232efa137ecd
# Parent  216c4a06a4628e8fe34ff91b094a979e6c0ff976
Avoid crash when setting alignment to 0

diff -r 216c4a06a462 -r 4a2c150ecd67 data/model/Model.cpp
--- a/data/model/Model.cpp	Thu Nov 20 15:47:05 2014 +0000
+++ b/data/model/Model.cpp	Thu Nov 20 16:18:31 2014 +0000
@@ -85,9 +85,13 @@
         m_alignment->aboutToDelete();
         delete m_alignment;
     }
+    
     m_alignment = alignment;
-    connect(m_alignment, SIGNAL(completionChanged()),
-            this, SIGNAL(alignmentCompletionChanged()));
+
+    if (m_alignment) {
+        connect(m_alignment, SIGNAL(completionChanged()),
+                this, SIGNAL(alignmentCompletionChanged()));
+    }
 }
 
 const AlignmentModel *