Stuck empty room on Matrix.org after failed invite

### Description

I have a stuck empty room showing on my list of rooms which I can neither enter nor leave.

When I try to leave it I get the message:

`MatrixError: [403] Event $DHp2akmaa1tUGt6XQlxV0UMi0ieFd1Hcfv10a8kO_ac has duplicate auth_events for ('m.room.member', '@mikedlr:matrix.org'): $_Xeo39RcIHoo45w2ISgl7hom27sAD36-bN9UKTaVVDM and $yH3MPKSaWtjjzBxI05zu3oVsUJfvhZs5v6vpGLRwW2s (https://matrix-client.matrix.org/_matrix/client/v3/rooms/!DfcSYFVRVViSDvIZXd%3Ahackerspace.pl/leave)`

### Steps to reproduce

- ask for an invite to the warsaw hackerspace #infra room from the admin
- try to join - fails taking a long time
- give up and leave it, possibly try rejecting invite (not sure if this ever actually did anything or was already jammed)
- come back and find an empty room
- try to leave empty room

### Homeserver

matrix.org

### Synapse Version

1.139.0rc3 (b=matrix-org-hotfixes-priv,9a71f66334)

### Installation Method

I don't know

### Database

don't know

### Workers

I don't know

### Platform

don't know

### Configuration

matrix.org configuration

### Relevant log output

```shell
MatrixError: [403] Event $DHp2akmaa1tUGt6XQlxV0UMi0ieFd1Hcfv10a8kO_ac has duplicate auth_events for ('m.room.member', '@mikedlr:matrix.org'): $_Xeo39RcIHoo45w2ISgl7hom27sAD36-bN9UKTaVVDM and $yH3MPKSaWtjjzBxI05zu3oVsUJfvhZs5v6vpGLRwW2s (https://matrix-client.matrix.org/_matrix/client/v3/rooms/!DfcSYFVRVViSDvIZXd%3Ahackerspace.pl/leave)
```

### Anything else that would be useful to know?

may be like issue #18888