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.ide/src/org/eclipse/ui/views/navigator/NavigatorDropAdapter.java
Display.getCurrent().asyncExec(new Runnable() {
            public void run() {
                getShell().forceActive();
				new CopyFilesAndFoldersOperation(getShell()).copyOrLinkFiles(names, target, currentOperation);
            }
        });
        return problems;
    }
	/**
     * Performs a resource copy
     */
    private IStatus performResourceCopy(Shell shell, IResource[] sources) {
        MultiStatus problems = new MultiStatus(PlatformUI.PLUGIN_ID, 1,
                ResourceNavigatorMessages.DropAdapter_problemsMoving, null);
        mergeStatus(problems, validateTarget(getCurrentTarget(),
                getCurrentTransfer()));
        IContainer target = getActualTarget((IResource) getCurrentTarget());
        boolean shouldLinkAutomatically = false;
		if (target.isVirtual()) {
			shouldLinkAutomatically = true;
			for (int i = 0; i < sources.length; i++) {
				if (sources[0].getType() != IResource.FILE) {
					shouldLinkAutomatically = false;
					break;
				}
			}
		}
		CopyFilesAndFoldersOperation operation = new CopyFilesAndFoldersOperation(