Bug 312540 [LinkedResources] Copy resource in Navigator and Project Explorer always shows dialog
N20100511-2000. When copying an IFile from one to another folder in the Navigator or Project Explorer, I always get the dialog no matter how I've set the preferences on the 'Linked Resources' page (even if I disable linked resources).
bundles/org.eclipse.ui.navigator.resources/src/org/eclipse/ui/navigator/resources/ResourceDropAdapterAssistant.java
refactoringStatus = refactoring.checkAllConditions(monitor);
					} catch (CoreException ex) {
						returnStatus = WorkbenchNavigatorPlugin.createErrorStatus(0, ex.getLocalizedMessage(), ex);
					}}
				};
				
				if (returnStatus != null)
					return returnStatus;
				try {
					PlatformUI.getWorkbench().getProgressService().run(false, false, checkOp);
				} catch (InterruptedException e) {
					return Status.CANCEL_STATUS;
				} catch (InvocationTargetException e) {
					return WorkbenchNavigatorPlugin.createErrorStatus(0, e.getLocalizedMessage(), e);
				}
				
				if (refactoringStatus.hasEntries()) {
					Dialog dialog= RefactoringUI.createLightWeightStatusDialog(refactoringStatus, getShell(), WorkbenchNavigatorMessages.MoveResourceAction_title);
					int result = dialog.open();
					if (result != IStatus.OK)
						return Status.CANCEL_STATUS;
				}
				
				final PerformRefactoringOperation op = new PerformRefactoringOperation(refactoring,
						CheckConditionsOperation.ALL_CONDITIONS);
				final IWorkspaceRunnable r = new IWorkspaceRunnable() {
					public void run(IProgressMonitor monitor) throws CoreException {
						op.run(monitor);
					}
				};