#3603 Grouping + navigation state fix

Former-commit-id: c1607acb

plugins/org.jkiss.dbeaver.core/src/org/jkiss/dbeaver/ui/controls/resultset/panel/grouping/GroupingResultsContainer.java

@@ -159,6 +159,8 @@ public class GroupingResultsContainer implements IResultSetContainer {
     public void clearGrouping() {
         initDefaultSettings();
         groupingViewer.resetDataFilter(false);
+        groupingViewer.resetHistory();
+        dataContainer.setGroupingQuery(null);
         if (!(groupingViewer.getActivePresentation() instanceof EmptyPresentation)) {
             groupingViewer.setEmptyPresentation();
         }