Image events without *info* not showed correctly

[danigm]

Image events without info aren't showed correctly in Riot-android. The Riot web is showing this events correctly.

This problem is reported in Fractal because the current version of Fractal doesn't add the info field to the content: https://gitlab.gnome.org/World/fractal/issues/348

But in the spec the info field isn't required: https://matrix.org/docs/spec/client_server/latest.html#m-image.

We'll add the info field to the Fractal client, but I think that this is a bug in the riot-android and maybe other clients will sent this kind of messages so this client should show the preview correctly or at least show it as a normal attachment to download.

This is what riot-android is showing:

Example event:

{
  "content": {
    "body": "org.gnome.Fractal.png",
    "msgtype": "m.image",
    "url": "mxc://matrix.org/VAJakxauMZSEhdyefwiqHoXZ"
  },
  "event_id": "$1539933516193407fdvmT:matrix.org",
  "sender": "@danigm:matrix.org",
  "type": "m.room.message",
  "unsigned": {
    "age": 631854,
    "transaction_id": "8252f4a4ea7cc0534e49e4e14a8a8784"
  }
}

[bmarty]

Hi @danigm , thanks for reporting. I think it is effectively an issue.

[bmarty]

ok, done