Bug 153378 [Regression]Label text won't show up when the text key is not found
Steps to reproduce: 1.Add a label, set text to "aaa" 2.Add a resource file "a" to the report, add a text key "k1" which is not in the a.properties to the label 3.Preview in Web Viewer Expected result: Label display "aaa" when the text key is not found Actual result: Nothing in preview
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/util/DocumentUtil.java
assert source instanceof ImageItem;
		assert target instanceof ImageItem;
		StructRefValue embeddedImage = (StructRefValue) source.getProperty(
				sourceDesign, ImageItem.IMAGE_NAME_PROP );
		if ( embeddedImage == null || !embeddedImage.isResolved( ) )
			return;
		if ( !isLocalImage( embeddedImage.getName( ), sourceDesign ) )
		{
			EmbeddedImage targetEmbeddedImage = (EmbeddedImage) embeddedImage
					.getTargetStructure( ).copy( );
			targetDesign.rename( targetEmbeddedImage );
			List images = targetDesign.getListProperty(
					targetDesign.getRoot( ), ReportDesign.IMAGES_PROP );
			if ( images == null )
			{
				images = new ArrayList( );
				targetDesign.setProperty( ReportDesign.IMAGES_PROP, images );
			}
			
			images.add( targetEmbeddedImage );
			StructRefValue structRef = new StructRefValue( null,
					targetEmbeddedImage.getName( ) );
			target.setProperty( ImageItem.IMAGE_NAME_PROP, structRef );
		}
	}
	/**
	 * 
	 * 
	 * @param imageName
	 * @param sourceDesign