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 == null )
			return;
		IElementDefn defn = element.getDefn( );
		if ( defn.getNameOption( ) == MetaDataConstants.REQUIRED_NAME
				|| element.getRoot( ) instanceof Library
				|| element.getName( ) != null )
			makeUniqueName( element );
		for ( int i = 0; i < defn.getSlotCount( ); i++ )
		{
			ContainerSlot slot = element.getSlot( i );
			if ( slot != null )
			{
				for ( int pos = 0; pos < slot.getCount( ); pos++ )
				{
					DesignElement innerElement = slot.getContent( pos );
					rename( innerElement );
				}
			}
		}
	}
	/**
	 * Returns the version manager for the API compatibility.
	 * 
	 * @return the version manager
	 */
	public VersionControlMgr getVersionManager( )
	{
		return versionMgr;
	}
}