[empathy] Don't set NM presence state on connect when it was unset

[Sjoerd Simons <sjoerds src gnome org>]

commit b06c101e97689187240ea55fe1d3e399ed0960e0
Author: Sjoerd Simons <sjoerd simons collabora co uk>
Date:   Mon Jun 1 12:06:50 2009 +0100

    Don't set NM presence state on connect when it was unset
    
    When the presence state that was saved upon disconnect was _UNSET don't try to
    set it when we reconnect.
---
 libempathy/empathy-idle.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/libempathy/empathy-idle.c b/libempathy/empathy-idle.c
index dbc1473..92ab9f3 100644
--- a/libempathy/empathy-idle.c
+++ b/libempathy/empathy-idle.c
@@ -230,7 +230,8 @@ idle_nm_state_change_cb (DBusGProxy  *proxy,
 
 	priv = GET_PRIV (idle);
 
-	if (!priv->use_nm) {
+	if (!priv->use_nm
+	    || priv->nm_saved_state == TP_CONNECTION_PRESENCE_TYPE_UNSET) {
 		return;
 	}