joining a room over federation seems to get stuck

[matrixbot]

Created by @ richvdh:matrix.org.

I tried to join #vector via sw1v.org, but I just got a spinner of doom

STR:

• open directory
• enter #alias:domain
• click 'join' in preview bar
• observe spinner of doom

[richvdh]

The problem here is that RoomView is created with props.roomId set to the room alias, rather than the room ID, which means that later events in the room are being ignored.

We should probably:

• get rid of the redundant props.roomId vs props.roomAlias - we only need one of them.
• store the roomId in RoomView instead (it doesn't need to go into state)
• store the roomId when we get the response from joinRoom.

[ara4n]

seems very similar/related to #1047?

[richvdh]

Yup looks like a dupe, will close the other

[richvdh]

Hopefully this will be fixed by matrix-org/matrix-react-sdk#270