issue in chatting

[yuvarajgogoi]

1. In Client1, create I1 (identity 1), this also creates LCI1 as a side effect (local contact for I1) in Client1.
2. In Client2, create I2 (identity 2), this also creates LCI2 (local contact for I2) in Client2.
3. Then in Client1 create CI2 (contact for I2) and in client2 create CI1 (contact for I1).
4. Then send a chat message in both clients.
5. Next, create I3 in Client1, and add CI3 to Client2.
6. In client2, delete CI1 (the contact for I1)
7. Now try to send chatting message to each other.

Issue: client 2 is able to send chatting message, but unable to receive any.

Tested in Ubuntu 13.10 and is always reproducible.