Bug: send message by an administrator failure

[OPENCZ]

What happened?

{
  "sendID": "5231187811",
  "recvID": "5430637402",
  "groupID": "",
  "senderNickname": "Gordon",
  "senderFaceURL": "http://www.head.com",
  "senderPlatformID": 1,
  "content": {
    "text": "{\"content\":\"hello world!\"}"
  },
  "contentType": 101,
  "sessionType": 1,
  "isOnlineOnly": false,
  "notOfflinePush": false,
  "offlinePushInfo": {
    "title": "send message",
    "desc": "",
    "ex": "",
    "iOSPushSound": "default",
    "iOSBadgeCount": true
  }
}

What did you expect to happen?

{
    "errCode": 500,
    "errMsg": "Key: 'TextElem.Content' Error:Field validation for 'Content' failed on the 'required' tag",
    "errDlt": ""
}

How can we reproduce it (as minimally and precisely as possible)?

如文档代码示例

Anything else we need to know?

No response

version

```console $ {main} version # paste output here ```

Cloud provider

阿里云

OS version

```console # On Linux: $ cat /etc/os-release # paste output here $ uname -a # paste output here # On Windows: C:\> wmic os get Caption, Version, BuildNumber, OSArchitecture # paste output here ```

Install tools

docker

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This issue is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 7 days.

[kubbot]

This issue was closed because it has been stalled for 7 days with no activity.