Bug 145520 Group name will not show up in group list if the group use default name and key expression has no value
Description: Group name will not show up in group list if key expression has no value. Steps to reproduce: 1. Insert a table into report, bind it to a data set 2. Switch to property editor -> groups 3. Click on add button to open new group dialog, then press ok button Expected result: A new group with default name will be added to group list Actual result: A new group is added to group list, but without group name. But when let group tab lost focus and get focus again, you can see the group name.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/core/Module.java
if ( element.getID( ) <= NO_ID
					|| ( getElementByID( element.getID( ) ) != null && getElementByID( element
							.getID( ) ) != element ) )
			{
				element.setID( getNextID( ) );
				assert getElementByID( element.getID( ) ) == null;
			}
			if ( getElementByID( element.getID( ) ) == null )
				addElementID( element );
		}
		else
		{
			dropElementID( element );
		}
		for ( int i = 0; i < defn.getSlotCount( ); i++ )
		{
			ContainerSlot slot = element.getSlot( i );
			if ( slot == null )
				continue;
			for ( int pos = 0; pos < slot.getCount( ); pos++ )
			{
				DesignElement innerElement = slot.getContent( pos );
				manageId( innerElement, isAdd );
			}
		}
	}
	/**
	 * Gets the location information of the module.
	 *