pw.CloseWithError(err)
	}()

	var rv remoteVersionID
	rv, err = tgtClient.PutWithMeta(ctx, destObj, pr, fi.Size, map[string]string{
		"name": object, // preserve the original name of the object on the remote tier object metadata.
		// this is just for future reverse lookup() purposes (applies only for new objects)
		// does not apply retro-actively on already transitioned objects.
	})

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 {