Bug 67716 [ProblemsView] Trying to sort in Problems View removes all items from view
Configure the problems view to display "selected resource and it children". Open a file with a couple of warnings. Sort by any of the columns in the table. All table items are removed and the view is displaying ZERO hits.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/MarkerView.java
if (markerDeltas.length != changes.size()) {
					refreshNeeded = true;
				}
				
				MarkerList changed = currentMarkers.findMarkers(changes);
				changed.refresh();
				
				change(changed.asList());
			}
			
			
			if (refreshNeeded) {
				markerCountDirty = true;
				refresh();
			}
		}
	};
	
	protected ActionCopyMarker copyAction;
	protected ActionPasteMarker pasteAction;
	protected SelectionProviderAction revealAction;
	protected SelectionProviderAction openAction;
	protected SelectionProviderAction showInNavigatorAction;
	protected SelectionProviderAction deleteAction;
	protected SelectionProviderAction selectAllAction;
	protected SelectionProviderAction propertiesAction;
	
	private ISelectionListener focusListener = new ISelectionListener() {
		public void selectionChanged(IWorkbenchPart part, ISelection selection) {
			MarkerView.this.focusSelectionChanged(part, selection);