Bug 147977 Chart editor does not use container's column bindings
1) create data source 2) create data set: select * from customers 3) create table 4) bind country, customer name to table 5) group by country 6) create a binding for total_by_country which aggregates # of customers in each country. put a data element in group footer and bind to total_by_country 7) in group header put chart 8) in data tab specify inherit from container Result: You see columns for report data set created in step 2. Expected Result: Just 3 columns for the 3 bindings created in 4 and 6.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/document/GroupDefnUtil.java
{
	/**
	 * @param outputStream
	 * @param filterList
	 * @throws DataException
	 */
	static void saveGroupDefn( OutputStream outputStream,
			List groupList ) throws DataException
	{
		DataOutputStream dos = new DataOutputStream( outputStream );
		int size = groupList == null ? 0 : groupList.size( );
		try
		{
			IOUtil.writeInt( dos, size );
			for ( int i = 0; i < size; i++ )
			{
				IGroupDefinition groupDefn = (IGroupDefinition) groupList.get( i );