synapse/changelog.d/13197.bugfix at d736d5cfadcc9a56523fcb1cfe8cb1d2be47a4ec - tileradotorg/synapse - tilera Git

tileradotorg/synapse

forked from MirrorHub/synapse

Eric Eastwood a962c5a56d

Fix exception when using MSC3030 to look for remote federated events before room creation (#13197 )

Complement tests: https://github.com/matrix-org/complement/pull/405

This happens when you have some messages imported before the room is created.
Then use MSC3030 to look backwards before the room creation from a remote
federated server. The server won't find anything locally, but will ask over
federation which will have the remote event. The previous logic would
choke on not having the local event assigned.

```
Failed to fetch /timestamp_to_event from hs2 because of exception(UnboundLocalError) local variable 'local_event' referenced before assignment args=("local variable 'local_event' referenced before assignment",)
```

2022-07-07 11:52:45 -05:00

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Fix exception when using experimental [MSC3030](https://github.com/matrix-org/matrix-spec-proposals/pull/3030) `/timestamp_to_event` endpoint to look for remote federated imported events before room creation.