Resolve "Make timezone field optional in personal event mutations"

Closes #1104 (closed)

aleksis/core/frontend/components/calendar/personal_event/PersonalEventDialog.vue

@@ -255,8 +255,13 @@ export default {
         datetimeEnd: item.fullDay ? undefined : item.datetimeEnd,
         dateStart: item.fullDay ? item.dateStart : undefined,
         dateEnd: item.fullDay ? item.dateEnd : undefined,
-        recurrences: item.recurring === false ? "" : item.recurrences,
-        timezone: DateTime.local().zoneName,
+        ...(item.recurring
+          ? {
+              // Add clients timezone only if item is recurring
+              timezone: DateTime.local().zoneName,
+              recurrences: item.recurrences,
+            }
+          : {}),
         persons: this.checkPermission(
           "core.create_personal_event_with_invitations_rule",
         )