We were incorrectly checking if the *local* token had been advanced, rather than the token for the remote instance. In practice, I don't think this has caused any bugs due to where we use `wait_for_stream_position`, as critically we don't use it on instances that also write to the given streams (and so the local token will lag behind all remote tokens).  | 
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|---|---|---|
| .. | ||
| http | ||
| slave | ||
| tcp | ||
| __init__.py | ||
| _base.py | ||
| test_auth.py | ||
| test_client_reader_shard.py | ||
| test_federation_ack.py | ||
| test_federation_sender_shard.py | ||
| test_module_cache_invalidation.py | ||
| test_multi_media_repo.py | ||
| test_pusher_shard.py | ||
| test_sharded_event_persister.py | ||