Bug 147604 Value in parameter list displays incorrectly with paramter group
Steps to reproduce: 1.Add a parameter group "pg" in report1, add a parameter"p" in the group 2.Add a label in report2, set a drill-through hyperlink, set target report is "report1", click parameter Expected result: Only one "p" lists in the value list Actual result: Two "p" appear
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/HyperlinkBuilder.java
}
						text.setText( filename );
					}
					else
					{
						text.setText( "" ); 
					}
					updateButtons( );
				}
				catch ( Exception ex )
				{
					ExceptionHandler.handle( ex );
				}
			}
		} );
		return button;
	}
	private void createTargetBar( )
	{
		new Label( displayArea, SWT.NONE ).setText( LABEL_TARGET );
		targetChooser = new Combo( displayArea, SWT.READ_ONLY | SWT.BORDER );
		targetChooser.setLayoutData( new GridData( GridData.FILL_HORIZONTAL ) );
		targetChooser.setItems( ChoiceSetFactory.getDisplayNamefromChoiceSet( CHOICESET_TARGET ) );
		UIUtil.createBlankLabel( displayArea );
	}
	private void createBookmarkBar( boolean isRequired )
	{
		String label;
		if ( isRequired )
		{