Bug 136807 [Regression]Preview embedded image with web view will effect other way to preview
Details: [Regression]Preview embedded image with web view will effect other way to preview Step: 1.New a library and insert a embedded image. 2.New a report design and use the library. 3.Drop the image form library into layout. 4.Preview with HTML/PDF. 5.Preview with web view. 6.Preview with HTML/PDF. Actual result: In step 4, image is previewed. In step 5, image can't be previewed. In step 6, image can't be previewed. It means that, after I use web view to preview the embedded image from library, I can't preview this image any ways.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/script/internal/instance/ImageInstance.java
{
	public ImageInstance( ImageContent image, ExecutionContext context )
	{
		super( image, context );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.engine.api.script.instance.IImageInstance#getAltText()
	 */
	public String getAltText( )
	{
		return ( ( ImageContent ) content ).getAltText( );
	}