JAL-3305 don't propagate an empty SelectionGroup to complement view
[jalview.git] / src / jalview / gui / SeqPanel.java
index 7020265..08e1194 100644 (file)
@@ -2763,7 +2763,7 @@ public class SeqPanel extends JPanel
      * Map sequence selection
      */
     SequenceGroup sg = MappingUtils.mapSequenceGroup(seqsel, sourceAv, av);
-    av.setSelectionGroup(sg);
+    av.setSelectionGroup(sg != null && sg.getSize() > 0 ? sg : null);
     av.isSelectionGroupChanged(true);
 
     /*