Doesn't adhere to enum ordering

[dignifiedquire]

protobuf.js version: 6.8.0

Given a proto definition like this

// An IPFS MerkleDAG Link
message PBLink {

  // multihash of the target object
  optional bytes Hash = 1;

  // utf string name. should be unique per object
  optional string Name = 2;

  // cumulative size of target object
  optional uint64 Tsize = 3;
}

// An IPFS MerkleDAG Node
message PBNode {

  // refs to other objects
  repeated PBLink Links = 2;

  // opaque user data
  optional bytes Data = 1;
}

I would expect that Links is written before Data, but looking at the generated source code it is the other way around

if (message.Data != null && message.hasOwnProperty("Data"))
            writer.uint32(/* id 1, wireType 2 =*/10).bytes(message.Data);
        if (message.Links != null && message.Links.length)
            for (var i = 0; i < message.Links.length; ++i)
                $root.PBLink.encode(message.Links[i], writer.uint32(/* id 2, wireType 2 =*/18).fork()).ldelim();

As I am doing hash comparisons between serialised objects, this breaks quite a lot of things for me currently.

(Full source: https://github.com/ipld/js-ipld-dag-pb/tree/master/src)