Bug 134216 [regression] add a report item to library does not work properly
steps to reproduce: - create a library - add report items, say label - add 1st label - add 2nd laebl expected behavior: - everytime i drag a label to Outline->ReportItems, the label will be added actual behavior: - for the 1st label, it worked out fine - for the 2nd label, i had to drag a label twice to complete the operation note that this happened with other report items as well
UI/org.eclipse.birt.report.designer.ui.lib/src/org/eclipse/birt/report/designer/internal/lib/editparts/LibraryReportDesignEditPart.java
*/
	public LibraryReportDesignEditPart( Object obj )
	{
		super( obj );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.gef.editparts.AbstractGraphicalEditPart#createFigure()
	 */
	protected IFigure createFigure( )
	{
		ReportRootFigure figure = new ReportRootFigure( );
		figure.setOpaque( true );
		figure.setShowMargin( showMargin );
		ReportDesignLayout layout = new ReportDesignLayout( this );
		Dimension size = DEFAULTSIZE;
		Rectangle bounds = new Rectangle( 0, 0, size.width - 1, size.height - 1 );
		layout.setInitSize( bounds );
		figure.setLayoutManager( layout );
		figure.setBorder( new ReportDesignMarginBorder( INSETS ) );
		figure.setBounds( bounds.getCopy( ) );
		return figure;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.designer.ui.editor.edit.ReportElementEditPart#getModelChildren()
	 */
	protected List getModelChildren( )