[evolution-data-server] I#169 - Detached instances shown as with floating time ][

[Milan Crha <mcrha src gnome org>]

commit eb511212a54309e42cb454f8b54c4bd4174aee1a
Author: Milan Crha <mcrha redhat com>
Date:   Thu Oct 24 15:01:49 2019 +0200

    I#169 - Detached instances shown as with floating time ][
    
    Missed a check for non-NULL tzid on the DTEND.
    
    Related to https://gitlab.gnome.org/GNOME/evolution-data-server/issues/169

 src/calendar/libecal/e-cal-client.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)
---
diff --git a/src/calendar/libecal/e-cal-client.c b/src/calendar/libecal/e-cal-client.c
index 30cc5ca1c..d4f6246cf 100644
--- a/src/calendar/libecal/e-cal-client.c
+++ b/src/calendar/libecal/e-cal-client.c
@@ -2448,14 +2448,16 @@ generate_instances (ECalClient *client,
                        }
 
                        if (dtend && e_cal_component_datetime_get_value (dtend)) {
-                               ICalTimezone *zone;
-
                                ci->end = i_cal_time_clone (e_cal_component_datetime_get_value (dtend));
 
-                               zone = e_cal_client_tzlookup_cb (e_cal_component_datetime_get_tzid (dtend), 
client, NULL, NULL);
+                               if (e_cal_component_datetime_get_tzid (dtend)) {
+                                       ICalTimezone *zone;
 
-                               if (zone)
-                                       i_cal_time_set_timezone (ci->end, zone);
+                                       zone = e_cal_client_tzlookup_cb (e_cal_component_datetime_get_tzid 
(dtend), client, NULL, NULL);
+
+                                       if (zone)
+                                               i_cal_time_set_timezone (ci->end, zone);
+                               }
                        } else {
                                ci->end = i_cal_time_clone (ci->start);