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
shell);
		
		if (shouldLinkAutomatically) {
			operation.setCreateLinks(true);
			operation.copyResources(sources, target);
		}
		else {
			boolean allSourceAreLinksOrGroups = true;
			for (int i = 0; i < sources.length; i++) {
				if (!sources[0].isVirtual() && !sources[0].isLinked()) {
					allSourceAreLinksOrGroups = false;
					break;
				}
			}
			
			if (!allSourceAreLinksOrGroups) {
				ImportTypeDialog dialog = new ImportTypeDialog(getShell(), getCurrentOperation(), sources, target);
				dialog.setResource(target);
				if (dialog.open() == Window.OK) {
					if (dialog.getSelection() == ImportTypeDialog.IMPORT_VIRTUAL_FOLDERS_AND_LINKS)
						operation.setVirtualFolders(true);
					if (dialog.getSelection() == ImportTypeDialog.IMPORT_LINK)
						operation.setCreateLinks(true);
					if (dialog.getVariable() != null)
						operation.setRelativeVariable(dialog.getVariable());
					operation.copyResources(sources, target);
				}
				else
					return problems;
			}