Bug 176467 Wrong page break effect for spanned cell
When page break occurs on spanned cell, this cell on next page is lost, which cause incorrect page layout. Report design to reproduce the error is attached.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/presentation/ReportDocumentBuilder.java
/**
	 * Reportlets index by instanceID, contains instanceId, offset pair.
	 */
	protected HashMap reportletsIndexById = new HashMap( );
	/**
	 * Reportlets index by bookmark, contains bookmark, offset pair.
	 */
	protected HashMap reportletsIndexByBookmark = new HashMap( );
	/**
	 * report document used to save the informations.
	 */
	protected ReportDocumentWriter document;
	/**
	 * used to write the content stream
	 */
	protected IContentEmitter contentEmitter;
	/**
	 * used to write the page content stream.
	 */
	protected CompositeContentEmitter outputEmitters;
	/**
	 * use the write the page hint stream.
	 */
	protected IPageHintWriter pageHintWriter;
	/**
	 * page handler used to recevie the document page events.
	 */
	protected IPageHandler pageHandler;
	protected IReportLayoutEngine engine;
	/**