"Can't load this message" for a notice event

Steps to reproduce

1. Enter a room and see a message whose source is this:

{
  "content": {
    "body": "> <undefined> \n\n**J‎ordan C‎onnor**: +1",
    "format": "org.matrix.custom.html",
    "formatted_body": "<mx-reply><blockquote><a href=\"https://matrix.to/#/!oqOIeEMggmJDUIJWHb:matrix.org/undefined\">In reply to</a> <a href=\"https://matrix.to/#/undefined\">undefined</a><br /></blockquote></mx-reply><strong>J‎ordan C‎onnor</strong>: +1",
    "m.relates_to": {
      "m.in_reply_to": {}
    },
    "msgtype": "m.notice",
    "uk.half-shot.matrix-hookshot.figma.comment_id": "156063232"
  },
  "origin_server_ts": 1645547287287,
  "sender": "@figmabot:half-shot.uk",
  "type": "m.room.message",
  "unsigned": {},
  "event_id": "$08wE7gxQEvTTILx5OcrRw-l5pozABBO2tBBOCNvSf3I",
  "room_id": "!oqOIeEMggmJDUIJWHb:matrix.org"
}

Outcome

What did you expect?

The message to render or be invisible

What happened instead?

An error was displayed: “Can’t load this message (m.room.message)”

Operating system

Ubuntu 21.10

Browser information

Firefox 96.0 (64-bit)

URL for webapp

https://develop.element.io

Application version

Element version: 3810b7e3297d-react-f4cd71fd47c7-js-2ec5acb55d35 Olm version: 3.2.8

Homeserver

matrix.org

Will you send logs?

Yes

[turt2live]

I’m not sure we should do anything about this - the event is very clearly invalid, likely caused by a bug in the bridge itself.

This is the exact sort of behaviour I’d expect for this kind of event.

[turt2live]

I’m going to open the search issue as a new issue, as it’s not the same cause as the notice event here.

The notice event is invalid. The search result was valid.

https://github.com/vector-im/element-web/issues/21216