[evolution-ews] Fix using updated change key

[Shiran Stan-Meleh <sstanmel src gnome org>]

commit 652afaf878f7b861d809b3081042fdff0fe10833
Author: Shiran Stan-Meleh <shiran stan-meleh intel com>
Date:   Mon Aug 22 15:33:30 2011 +0300

    Fix using updated change key

 src/calendar/e-cal-backend-ews.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/calendar/e-cal-backend-ews.c b/src/calendar/e-cal-backend-ews.c
index 49e396a..d043e23 100644
--- a/src/calendar/e-cal-backend-ews.c
+++ b/src/calendar/e-cal-backend-ews.c
@@ -1311,7 +1311,7 @@ ews_create_attachments_cb(GObject *object, GAsyncResult *res, gpointer user_data
 		modify_data->cal = g_object_ref (create_data->cal);
 		modify_data->context = create_data->context;
 		modify_data->itemid = create_data->itemid;
-		modify_data->changekey = create_data->changekey;
+		modify_data->changekey = change_key;
 		
 		if (e_cal_component_has_attendees (create_data->comp))
 			send_meeting_invitations = "SendToAllAndSaveCopy";