Sent message was not marked as sent in the local database

[daniele-athome]

I had a reported case of a group message not set to "sent" status in the database, despite the SM ack was correctly received by the server. Check the whole message confirmation workflow.

What apparently happened:

• message was sent from resending queue after connection was authenticated (log present: "resending message...")
• ack came through but the message was not set to "sent"
• a couple of minutes later network changes and connection is restarted
• message is sent again right after authentication (no log this time. What?!?) and confirmed, but status was not sent (still pending)
• message is sent once again after the multicast service replies with discovery information (this time it's the correct workflow, with "resending message" log line)
• message was confirmed by server but still not set to "sent" status
• at the next reconnection, the message is correctly sent again, this time the status was set to "sent"

Ack handled message count by the server was always correct, so I'm assuming the problem is client-side.

[daniele-athome]

Possibly fixed in 32d6d14.