func (filter *FilterRule) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
	// Make subtype to avoid recursive UnmarshalXML().
	type filterRule FilterRule
	rule := filterRule{}
	if err := d.DecodeElement(&rule, &start); err != nil {
		return err
	}

	if rule.Name != "prefix" && rule.Name != "suffix" {
		return &ErrInvalidFilterName{rule.Name}
	}

	if err := ValidateFilterRuleValue(filter.Value); err != nil {

	// Make subtype to avoid recursive UnmarshalXML().
	type deleteReplication DeleteReplication
	drep := deleteReplication{}

	if err := dec.DecodeElement(&drep, &start); err != nil {
		return err
	}
	if len(drep.Status) == 0 {
		drep.Status = Disabled
	}
	d.Status = drep.Status
	return nil
}

	// Make subtype to avoid recursive UnmarshalXML().
	type defaultRetention DefaultRetention
	retention := defaultRetention{}

	if err := d.DecodeElement(&retention, &start); err != nil {
		return err
	}

	switch retention.Mode {
	case RetGovernance, RetCompliance:
	default:
		return fmt.Errorf("unknown retention mode %v", retention.Mode)
	}