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
return bindingObject;
	}
	public ComputedColumnHandle getBindingColumn( )
	{
		return this.bindingColumn;
	}
	
	public void setInput( ReportItemHandle bindingObject,
			ComputedColumnHandle bindingColumn, Object container )
	{
		this.setInput( bindingObject, bindingColumn );
		if(dialogHelper!=null)
			dialogHelper.setDataItemContainer( container );
	}
	public void setInput( ReportItemHandle bindingObject,
			ComputedColumnHandle bindingColumn )
	{
		this.bindingObject = bindingObject;
		
		
		this.bindingColumn = bindingColumn;