Bug 188829 Move the item ,the trans of the model don't close.
1:New report design. 2:Add a Embedded image. 3:Add another imge , then drag the second imge to the first position. 4:Change the size of the first image. Expected: Image change the size. Now: Image size don't change.
model/org.eclipse.birt.report.model.tests/test/org/eclipse/birt/report/model/command/ContentCommandTest.java
{
	/**
	 * The report element to be tested.
	 */
	private DesignElement container;
	private MasterPageHandle containerHandle;
	ElementFactory factory = null;
	/*
	 * @see TestCase#setUp()
	 */
	protected void setUp( ) throws Exception
	{
		super.setUp( );
		sessionHandle = new DesignEngine( new DesignConfig( ) )
				.newSessionHandle( (ULocale) null );
		designHandle = sessionHandle.createDesign( "myDesign" ); 
		design = (ReportDesign) designHandle.getModule( );
		factory = new ElementFactory( design );
		containerHandle = factory.newGraphicMasterPage( "Master page1" ); 
		designHandle.getMasterPages( ).add( containerHandle );
		container = containerHandle.getElement( );
	}
	/**
	 * Tests add functions. Test Case:
	 * 
	 * <ul>
	 * <li>the target container is not a container;
	 * <li>Trying to add more than one content into a slot when slot can only