Bug 163636 "controlType" and "mustMatch" should be matched
If "controlType" is combo-box, "mustMatch" should be false; else "controlType" is list-box, "mustMatch" should be true.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/ParameterDialog.java
defaultValue = inputParameter.getDefaultValue( );
		if ( DesignChoiceConstants.PARAM_TYPE_DATETIME.equals( getSelectedDataType( ) ) )
		{
			try
			{
				defaultValue = convertToStandardFormat( DEUtil.convertToDate( defaultValue ) );
			}
			catch ( ParseException e )
			{
				ExceptionHandler.handle( e );
				return false;
			}
		}
		if ( inputParameter.getPropertyHandle( ScalarParameterHandle.LIST_LIMIT_PROP )
				.isSet( ) )
		{
			listLimit.setText( String.valueOf( inputParameter.getListlimit( ) ) );
		}
		isHidden.setSelection( inputParameter.isHidden( ) );
		allowNull.setSelection( inputParameter.allowNull( ) );
		allowBlank.setSelection( inputParameter.allowBlank( ) );
		doNotEcho.setSelection( inputParameter.isConcealValue( ) );
		needSort.setSelection( !inputParameter.isFixedOrder( ) );
		changeDataType( );
		dataTypeChooser.setText( DATA_TYPE_CHOICE_SET.findChoice( inputParameter.getDataType( ) )
				.getDisplayName( ) );
		switchParamterType( );
		loading = false;
		return true;
	}