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/src/org/eclipse/birt/report/model/command/MoveContentRecord.java
/**
	 * The original position of the content.
	 */
	protected int oldPosn = 0;
	/**
	 * Constructor.
	 * 
	 * @param theModule
	 * 
	 * @param containerInfor
	 *            the container information.
	 * @param obj
	 *            the content element to move.
	 * @param posn
	 *            the new position of the content element.
	 */
	public MoveContentRecord( Module theModule,
			ContainerContext containerInfor, DesignElement obj, int posn )
	{
		module = theModule;
		focus = containerInfor;
		content = obj;
		newPosn = posn;
		assert focus != null;
		assert focus.getContainerDefn( ) != null;
		assert content != null;
		assert focus.canContain( module, content );
		assert newPosn >= 0 && newPosn < focus.getContentCount( module );
		oldPosn = focus.indexOf( module, content );
		label = ModelMessages