schedule-section: Skip updating recurrence limit if no repeat

Part-of: <https://gitlab.gnome.org/GNOME/gnome-calendar/-/merge_requests/634>

src/gui/event-editor/gcal-schedule-section.c

@@ -433,16 +433,6 @@ get_recurence_limit_type (GcalScheduleSection *self)
   return (GcalRecurrenceLimitType) item;
 }
 
-static void
-on_repeat_duration_changed_cb (GtkWidget           *widget,
-                               GParamSpec          *pspec,
-                               GcalScheduleSection *self)
-{
-  GcalRecurrenceLimitType limit_type = get_recurence_limit_type (self);
-  GcalEventSchedule *updated = gcal_event_schedule_set_recur_limit_type (self->values, limit_type);
-  update_from_event_schedule (self, updated);
-}
-
 static GcalRecurrenceFrequency
 get_recurrence_frequency (GcalScheduleSection *self)
 {
@@ -453,6 +443,19 @@ get_recurrence_frequency (GcalScheduleSection *self)
   return (GcalRecurrenceFrequency) item;
 }
 
+static void
+on_repeat_duration_changed_cb (GtkWidget           *widget,
+                               GParamSpec          *pspec,
+                               GcalScheduleSection *self)
+{
+  if (get_recurrence_frequency (self) != GCAL_RECURRENCE_NO_REPEAT)
+    {
+      GcalRecurrenceLimitType limit_type = get_recurence_limit_type (self);
+      GcalEventSchedule *updated = gcal_event_schedule_set_recur_limit_type (self->values, limit_type);
+      update_from_event_schedule (self, updated);
+    }
+}
+
 static void
 on_repeat_type_changed_cb (GtkWidget           *widget,
                            GParamSpec          *pspec,