func getCpObjMetadataFromHeader(ctx context.Context, r *http.Request, userMeta map[string]string) (map[string]string, error) {
	// Make a copy of the supplied metadata to avoid
	// to change the original one.
	defaultMeta := make(map[string]string, len(userMeta))
	for k, v := range userMeta {
		// skip tier metadata when copying metadata from source object
		switch k {

		}
		var id string
		if idClaim := globalIAMSys.OpenIDConfig.GetUserIDClaim(matchingCfgName); idClaim != "" {
			id, _ = accessKey.Claims[idClaim].(string)
		}
		if !userSet.IsEmpty() && !userSet.Contains(accessKey.ParentUser) && !userSet.Contains(id) {
			continue // skip if not in the user list
		}
		openIDUserAccessKeys, ok := cfgToUsersMap[matchingCfgName][accessKey.ParentUser]