X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fviewmodel%2FAlignmentViewport.java;fp=src%2Fjalview%2Fviewmodel%2FAlignmentViewport.java;h=0d26db15c93f30ef04508259437d9fcfc51d0740;hb=f8691b979a068d0992608a51de66271f299dbb6b;hp=4f399f0d2aee44c3c5479464b17568d7a7accb8e;hpb=7c269dc87e6fda52db3d73d07bc5f3e879e1f681;p=jalview.git

diff --git a/src/jalview/viewmodel/AlignmentViewport.java b/src/jalview/viewmodel/AlignmentViewport.java
index 4f399f0..0d26db1 100644
--- a/src/jalview/viewmodel/AlignmentViewport.java
+++ b/src/jalview/viewmodel/AlignmentViewport.java
@@ -963,6 +963,7 @@ public abstract class AlignmentViewport
     ranges = null;
     currentTree = null;
     selectionGroup = null;
+    colSel = null;
     setAlignment(null);
   }