If connection loss occurs, it calls session_disconnect() eventually.
This function clears saved account data which is required for
reconnection. Therefore, when reconnect timer expires, we get errors:
02/06/2019 04:53:42: stderr: ERR: (profanity:17115): GLib-CRITICAL **:
04:53:42.305: g_key_file_has_group: assertion
'group_name != NULL' failed
02/06/2019 04:53:43: prof: ERR: Unable to reconnect, account no longer
exists: (null)
To solve it, don't clear the saved data in session_disconnect(). It will
be cleared properly on connection loss if reconnect timer is not
configured. But won't be cleared with /disconnect command.
So, after /disconnect the data will live in memory until the next
/connect.
Also, remove some copy-paste in connection loss path.
4344ee2a5a