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/BindingDialogHelper.java
Text txtArg = (Text) argsMap.get( argDisplayName );
					txtArg.setText( arg.getValue( ) );
				}
			}
		}
	}
	private String[] getFunctionDisplayNames( )
	{
		IAggregationInfo[] choices = getFunctions( );
		if ( choices == null )
			return new String[0];
		String[] displayNames = new String[choices.length];
		for ( int i = 0; i < choices.length; i++ )
		{
			displayNames[i] = choices[i].getDisplayName( );
		}
		return displayNames;
	}
	private IAggregationInfo getFunctionByDisplayName( String displayName )
	{
		IAggregationInfo[] choices = getFunctions( );
		if ( choices == null )
			return null;
		for ( int i = 0; i < choices.length; i++ )
		{
			if ( choices[i].getDisplayName( ).equals( displayName ) )
			{
				return choices[i];
			}
		}