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synapse/changelog.d/17362.bugfix

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Handle multiple rows device inbox (#17362) Fix bug where we don't get new to-device from remote if they resent a message we've already persisted and have recorded in the DB twice. `device_federation_inbox` table doesn't have a unique index, and so we can race and store an entry in there twice. If we do so then `simple_select_one_txn` will throw an error due to the query returning more than one row. We should add an unique index, but it doesn't really matter so lets just handle the case of multiple rows correctly for now.
2024-06-27 04:04:31 -06:00
Fix rare race which causes no new to-device messages to be received from remote server.