Swarm: Compat with Non-Swarm clients, messages kept?
- Alice (client-qt, swarm) adds Bob (non-swarm client)
- Alice will create a swarm that should be shown
- Bob accepts the invite
- Because Bob is a non-swarm compatible member, the swarm is deleted, but contact still present
When conversation is removed, old messages are still there.
Messages from swarm should be deleted