Bug 56196 [Progress] Cannot create file when using repository
I200304250010 1) Create a new workspace 2) Add a repository connection 3) Create project A 4) Check out a larger project B While the check out is running 5) File>New>File 6) Select project B 7) Add a name 8) Press Finish -> File cannot be created because this is blocked by a background operation
bundles/org.eclipse.ui.ide/extensions/org/eclipse/ui/dialogs/WizardNewFolderMainPage.java
handleAdvancedButtonSelect();
			}
		});
	}
	linkedResourceGroup = new CreateLinkedResourceGroup(
		IResource.FOLDER,
		new Listener() {
			public void handleEvent(Event e) {
				setPageComplete(validatePage());
				firstLinkCheck = false;					
			}
		});
}
/** (non-Javadoc)
 * Method declared on IDialogPage.
 */
public void createControl(Composite parent) {
	initializeDialogUnits(parent);
	
	Composite composite = new Composite(parent,SWT.NONE);
	composite.setFont(parent.getFont());
	composite.setLayout(new GridLayout());
	composite.setLayoutData(new GridData(
		GridData.VERTICAL_ALIGN_FILL | GridData.HORIZONTAL_ALIGN_FILL));
	WorkbenchHelp.setHelp(composite, IHelpContextIds.NEW_FOLDER_WIZARD_PAGE);
	resourceGroup = new ResourceAndContainerGroup(composite,this,IDEWorkbenchMessages.getString("WizardNewFolderMainPage.folderName"), IDEWorkbenchMessages.getString("WizardNewFolderMainPage.folderLabel"), false, SIZING_CONTAINER_GROUP_HEIGHT); 
	resourceGroup.setAllowExistingResources(false);
	createAdvancedControls(composite);
	initializePage();
	validatePage();