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/core/ReferencableStructure.java
public List getClientList( )
	{
		return clients;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.model.api.core.IReferencable#hasReferences()
	 */
	public boolean hasReferences( )
	{
		return !clients.isEmpty( );
	}
	/**
	 * Sends the event to all clients in addition to the routing for a design
	 * element.
	 * 
	 * @param ev
	 *            the event to send
	 */
	public void broadcast( NotificationEvent ev )
	{
		ev.setDeliveryPath( NotificationEvent.STRUCTURE_CLIENT );
		for ( int i = 0; i < clients.size( ); i++ )
		{
			( (BackRef) clients.get( i ) ).element.broadcast( ev );
		}
	}
	/**
	 * Checks whether the member of the input name is the referencable member or