Element-web: Room upgrades: 'No known servers' when following upgrade link

[richvdh]

Is riot-web not setting a server_name?

[neilisfragile]

The impact of this bug is that we cannot auto upgrade a room and instead need to manually invite members of the old room into the new room.

[richvdh]

The impact of this bug is that we cannot auto upgrade a room and instead need to manually invite members of the old room into the new room.

This is only true when users are on different homeservers to the admin who created the new room

[turt2live]

@richvdh what are the steps to get to this point? I'm having some troubles figuring out which link you're referencing here.

[richvdh]

Neil was the one that reported it, but I think the steps are:

• user on server A upgrades the room (via the REST API).
• user on server B sees the "this room has been replaced" message, and clicks on it.
• something something
• They see the error above

[turt2live]

Not mentioned is that it also hammers the /join endpoint and doesn't let you dismiss the dialog or otherwise try and avoid it.

Edit: nevermind, this is a different bug

[turt2live]

Fixed by https://github.com/matrix-org/matrix-react-sdk/pull/2428

[turt2live]

Is riot-web not setting a server_name?

Yes, btw