From 8f98a3fb0fe3228bfb39345f44f84484688cdb03 Mon Sep 17 00:00:00 2001
From: Radek Vykydal <rvykydal@redhat.com>
Date: Mar 19 2021 15:30:47 +0000
Subject: Fix crash in NTP servers GUI dialog on late network configuration


Resolves: rhbz#1938168

---

diff --git a/pyanaconda/ui/gui/spokes/datetime_spoke.py b/pyanaconda/ui/gui/spokes/datetime_spoke.py
index a64879c..50ae156 100644
--- a/pyanaconda/ui/gui/spokes/datetime_spoke.py
+++ b/pyanaconda/ui/gui/spokes/datetime_spoke.py
@@ -324,15 +324,18 @@ class NTPconfigDialog(GUIObject, GUIDialogInputCheckHandler):
         #check if we are in the same epoch as the dialog (and the serversStore)
         #and if the server wasn't changed meanwhile
         if epoch_started == self._epoch:
-            actual_hostname = self._serversStore[itr][SERVER_HOSTNAME]
-
-            if orig_hostname == actual_hostname:
-                if server_working:
-                    set_store_value((self._serversStore,
-                                     itr, SERVER_WORKING, constants.NTP_SERVER_OK))
-                else:
-                    set_store_value((self._serversStore,
-                                     itr, SERVER_WORKING, constants.NTP_SERVER_NOK))
+            # rhbz#1938168 - when called on Spoke enter / refresh the store can
+            # be cleared by opening NTPConfigDialog
+            if self._serversStore.iter_is_valid(itr):
+                actual_hostname = self._serversStore[itr][SERVER_HOSTNAME]
+
+                if orig_hostname == actual_hostname:
+                    if server_working:
+                        set_store_value((self._serversStore,
+                                        itr, SERVER_WORKING, constants.NTP_SERVER_OK))
+                    else:
+                        set_store_value((self._serversStore,
+                                        itr, SERVER_WORKING, constants.NTP_SERVER_NOK))
         self._epoch_lock.release()
 
     @async_action_nowait