[evolution-ews] Do not try to reuse the same context twice when modifying an object that contains attachments

[Or Goshen <ogosh src gnome org>]

commit 246767999d6f0b3795e69ba4c596b5389d34edc7
Author: Or Goshen <orx goshen intel com>
Date:   Thu Aug 25 13:14:10 2011 +0300

    Do not try to reuse the same context twice when modifying an object that contains attachments

 src/calendar/e-cal-backend-ews.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/calendar/e-cal-backend-ews.c b/src/calendar/e-cal-backend-ews.c
index c8869c2..ea0c407 100644
--- a/src/calendar/e-cal-backend-ews.c
+++ b/src/calendar/e-cal-backend-ews.c
@@ -1671,7 +1671,7 @@ ews_cal_modify_object_cb (GObject *object, GAsyncResult *res, gpointer user_data
 	else if (error) {
 		g_warning ("Modify object error :  %s\n", error->message);
 		g_clear_error (&error);
-	}
+	} else ews_start_sync (modify_data->cbews);
 
 	PRIV_LOCK (priv);
 	g_hash_table_replace (priv->item_id_hash, g_strdup(modify_data->itemid), g_object_ref (modify_data->comp));
@@ -2087,7 +2087,7 @@ e_cal_backend_ews_modify_object (ECalBackend *backend, EDataCal *cal, EServerMet
 		attach_data->cb_type = 2;
 		attach_data->oldcomp = g_object_ref (oldcomp);
 		attach_data->cal = g_object_ref (cal);
-		attach_data->context = context;
+		attach_data->context = NULL;
 		attach_data->itemid = itemid;
 		attach_data->changekey = changekey;