JAL-1185 patch NPE - create new group for subtree on each view

diff --git a/src/jalview/gui/TreeCanvas.java b/src/jalview/gui/TreeCanvas.java
index 9f65511..7d413f6 100755 (executable)
--- a/src/jalview/gui/TreeCanvas.java
+++ b/src/jalview/gui/TreeCanvas.java
@@ -931,7 +931,7 @@ public class TreeCanvas extends JPanel implements MouseListener, Runnable,
           sg.cs.setConservation(c);
         }
 
-        aps[a].av.getAlignment().addGroup(sg);
+        aps[a].av.getAlignment().addGroup(new SequenceGroup(sg));
       }
     }
     // notify the panel to redo any group specific stuff.