Wrong isMine property in websocket seen messages

[maryayi]

When I replied a message of myself and another user sees it, the seen message coming from websocket has a wrong isMine value in replyTo field:
For example (Shown by: THIS IS WRONG! in the JSON) :

{
  "createdAt": "2019-02-23T13:29:26.797589",
  // ...
  "replyTo": {
    "id": 42,
    // ...
    "isMine": false, // THIS IS WRONG!
    // ...
  },
  // ...
  "id": 43,
  "type": "seen"
}