Patch for a small leak when notifying folder observers

[Sergio Villar Senin <svillar igalia com>]

Hi,

find attached the fix to a small leak when notifying the folder observers.

Br

Index: tny-camel-folder.c
===================================================================
--- tny-camel-folder.c	(revision 3096)
+++ tny-camel-folder.c	(working copy)
@@ -176,7 +176,7 @@
 	TnyCamelFolderPriv *priv = TNY_CAMEL_FOLDER_GET_PRIVATE (self);
 	TnyCamelAccountPriv *apriv = TNY_CAMEL_ACCOUNT_GET_PRIVATE (priv->account);
 	TnyIterator *iter;
-	GList *list;
+	GList *list, *list_iter;
 
 	g_static_rec_mutex_lock (priv->obs_lock);
 	if (!priv->obs) {
@@ -184,14 +184,15 @@
 		return;
 	}
 	list = g_list_copy (priv->obs);
+	list_iter = list;
 	g_static_rec_mutex_unlock (priv->obs_lock);
 
-	while (list)
+	while (list_iter)
 	{
-		TnyFolderObserver *observer = TNY_FOLDER_OBSERVER (list->data);
+		TnyFolderObserver *observer = TNY_FOLDER_OBSERVER (list_iter->data);
 		tny_lockable_lock (apriv->session->priv->ui_lock);
 		tny_folder_observer_update (observer, change);
 		tny_lockable_unlock (apriv->session->priv->ui_lock);
-		list = g_list_next (list);
+		list_iter = g_list_next (list_iter);
 	}
 	g_list_free (list);