X-Git-Url: http://source.jalview.org/gitweb/?p=jalview.git;a=blobdiff_plain;f=src%2Fjalview%2Fviewmodel%2FAlignmentViewport.java;h=c9a3a8019a8f920fbba29892ae27e495d7271991;hp=2c430dbe6dcbe73c12b55acf68ec3de1f8cba1ab;hb=af259f508805faf2da90585ee9a67cd7853bf5aa;hpb=3d2750d886f1b6015b2fc3f8671a6cf3e32bb07a

diff --git a/src/jalview/viewmodel/AlignmentViewport.java b/src/jalview/viewmodel/AlignmentViewport.java
index 2c430db..c9a3a80 100644
--- a/src/jalview/viewmodel/AlignmentViewport.java
+++ b/src/jalview/viewmodel/AlignmentViewport.java
@@ -959,6 +959,7 @@ public abstract class AlignmentViewport
     ranges = null;
     currentTree = null;
     selectionGroup = null;
+    colSel = null;
     setAlignment(null);
   }