}
		delete(dst, key)
	}
	legalHold := GetObjectLegalHoldMeta(metadata)
	if !legalHold.Status.Valid() || filterLegalHold {
		delKey(AmzObjectLockLegalHold)
	}

	ret := GetObjectRetentionMeta(metadata)
	if !ret.Mode.Valid() || filterRetention {
		delKey(AmzObjectLockMode)
		delKey(AmzObjectLockRetainUntilDate)
		return dst
	}
	return dst

		currKVS := ck.Clone()
		defKVS := DefaultKVS[subSys]
		for _, delKey := range strings.Fields(inputs[1]) {
			_, ok := currKVS.Lookup(delKey)
			if !ok {
				return Error[ErrConfigNotFound]("key %s doesn't exist", delKey)
			}
			defVal, isDef := defKVS.Lookup(delKey)
			if isDef {
				currKVS.Set(delKey, defVal)
			} else {
				currKVS.Delete(delKey)
			}
		}
		c[subSys][tgt] = currKVS
	} else {

	// Copy on write
	dst := metadata
	var copied bool
	delKey := func(key string) {
		if _, ok := metadata[key]; !ok {
			return
		}
		if !copied {
			dst = make(map[string]string, len(metadata))
			for k, v := range metadata {
				dst[k] = v
			}
			copied = true
		}
		delete(dst, key)
	}

	delKey(xhttp.AmzBucketReplicationStatus)
	return dst
}