Bug 198270 Copying an aggregate does not make a copy, only a reference
In a table with groups or multiple columns, create an aggregate in a footer or a header. Copy the aggregate to another cell in a footer or a header. Make changes to the new aggregate appropriate to its new location. Expected result: The changes appear in only the new copy of the aggregate. Actual result: The changes appear in both aggregates because the new aggregate is not a copy, but a reference to the same aggregate as the original.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dialogs/DataColumnBindingDialog.java
protected void okPressed( )
	{
		try
		{
			dialogHelper.save( );
			this.bindingColumn = dialogHelper.getBindingColumn( );
			super.okPressed( );
		}
		catch ( Exception e )
		{
			ExceptionHandler.handle( e );
		}
	}
	protected void createButtonsForButtonBar( Composite parent )
	{
		super.createButtonsForButtonBar( parent );
		dialogHelper.validate( );
	}
	protected boolean initDialog( )
	{
		dialogHelper.initDialog( );
		return super.initDialog( );
	}
	public void setCanFinish( boolean canFinish )
	{
		if ( getOkButton( ) != null )
			getOkButton( ).setEnabled( canFinish );
	}
}