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/ContentCommand.java
{
		doReplace( from, to, unresolveReference );
	}
	/**
	 * @see #transformTemplate(DesignElement, DesignElement, int, boolean)
	 * 
	 * @param oldElement
	 *            the old element to replace
	 * @param newElement
	 *            the new element to replace
	 * @param slotID
	 *            the slot from which to replace the old element
	 * @param unresolveReference
	 *            status whether to un-resolve the references or set the
	 *            reference to null
	 * @throws SemanticException
	 *             if the old element cannot be replaced by the new element into
	 *             this container.
	 */
	private void doReplace( DesignElement oldElement, DesignElement newElement,
			boolean unresolveReference ) throws SemanticException
	{
		this.unresolveReference = unresolveReference;
		assert newElement.getContainer( ) == null;
		
		ElementDefn metaData = (ElementDefn) element.getDefn( );
		if ( !metaData.isContainer( ) )
			throw ContentExceptionFactory.createContentException( focus,
					ContentException.DESIGN_EXCEPTION_NOT_CONTAINER );
		IContainerDefn containerDefn = focus.getContainerDefn( );