X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fviewmodel%2FAlignmentViewport.java;h=063d4ab6e563fb6fad7de7045250e4f00fc92988;hb=f6d3b491c392914981b65fee21df51b530ee80f7;hp=8dcd1b3220a6225714eebd235c2eca5cd977b583;hpb=46de3e3e40a79d4d8b11c48190d3bf1654e7c76b;p=jalview.git

diff --git a/src/jalview/viewmodel/AlignmentViewport.java b/src/jalview/viewmodel/AlignmentViewport.java
index 8dcd1b3..063d4ab 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);
   }