No reason was provided for this change.
In particular, this reason SHOULD be used when representing users joining a named chatroom in the usual way, users leaving a chatroom by their own request, and normal termination of a StreamedMedia call by the remote user. If the SelfHandle is removed from a group for this reason and the actor is not the SelfHandle, the equivalent D-Bus error is org.freedesktop.Telepathy.Error.Terminated. If the SelfHandle is removed from a group for this reason and the actor is also the SelfHandle, the equivalent D-Bus error is org.freedesktop.Telepathy.Error.Cancelled.