TODO/bugs In SILC Server
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- o After backup resuming protocol some of the server's SilcIDListData
- on primary that came back online are NULL. Seems actually that the
- udpate_client_by_server does not work since the client->router, and
- the client->router->connection->user_data are not same, and they
- should be.
+ o After backup resume protocol the TOPIC_SET was not handled correctly
+ by all (unknown Channel ID).
o Server signoff notifys does not go to normal servers from routers.