don't unhook existing group associated annotation JAL-1480

diff --git a/src/jalview/viewmodel/AlignmentViewport.java b/src/jalview/viewmodel/AlignmentViewport.java
index 9e9c3fe..d49572d 100644 (file)
--- a/src/jalview/viewmodel/AlignmentViewport.java
+++ b/src/jalview/viewmodel/AlignmentViewport.java
@@ -1505,7 +1505,7 @@ public abstract class AlignmentViewport implements AlignViewportI
         if (aan[an].autoCalculated && aan[an].groupRef != null)
         {
           oldrfs.add(aan[an].groupRef);
-          alignment.deleteAnnotation(aan[an]);
+          alignment.deleteAnnotation(aan[an],false);
         }
       }
     }