fix: segment stub deserialization (#1310)

pkg/storage/segment/serialization.go

@@ -106,9 +106,13 @@ func Deserialize(r io.Reader) (*Segment, error) {
 	if err != nil {
 		return nil, err
 	}
-
 	s.populateFromMetadata(mdata)
 
+	// In some cases, there can be no nodes.
+	if br.Buffered() == 0 {
+		return s, nil
+	}
+
 	parents := []*streeNode{nil}
 	for len(parents) > 0 {
 		depth, err := varint.Read(br)