Bug 136241 [regression]Preview template in web viewer and pdf didn't get correct effect.
Description: Preview template items in web viewer and pdf didn't get correct effect. Steps to reproduce: 1. Create template items. 2. Preview in Web Viewer and pdf. Expected result: Same effect as in html. Actual result: In web viewer, see only blank box. In pdf, blank page.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/core/Module.java
protected int saveState = 0;
	/**
	 * The array of name spaces. The meanings of each name space is defined in
	 * {@link org.eclipse.birt.report.model.api.metadata.MetaDataConstants MetaDataConstants}.
	 */
	protected NameSpace nameSpaces[] = new NameSpace[NAME_SPACE_COUNT];
	/**
	 * The array of module name spaces. Each name space has the corresponding
	 * module name space.
	 */
	protected IModuleNameSpace moduleNameSpaces[] = new IModuleNameSpace[NAME_SPACE_COUNT];
	/**
	 * The set of slots for the module.
	 */
	protected ContainerSlot slots[] = null;
	/**
	 * Internal table to store a bunch of user-defined messages. One message can
	 * be defined in several translations, one translation per locale.
	 */
	protected TranslationTable translations = new TranslationTable( );
	/**
	 * The property definition list of all the referencable structure list
	 * property. Each one in the list is instance of <code>IPropertyDefn</code>
	 */
	private HashMap referencableProperties = null;
	/**
	 * Accumulates errors and warnings during a batch operation. Each one is the
	 * instance of <code>Exception</code>.
	 */
	protected List allExceptions = new ArrayList( );