fix: series empty buffers

Author: joonatank

apps/admin-ui/src/spa/my-units/recurring/RecurringReservationForm.tsx

@@ -217,10 +217,10 @@ function RecurringReservationForm({
     const buffers = {
       before: data.bufferTimeBefore
         ? getBufferTime(reservationUnit.bufferTimeBefore, data.type)
-        : undefined,
+        : 0,
       after: data.bufferTimeAfter
         ? getBufferTime(reservationUnit.bufferTimeAfter, data.type)
-        : undefined,
+        : 0,
     };
 
     try {

apps/admin-ui/src/spa/reservations/[id]/series/index.tsx

@@ -222,8 +222,8 @@ function SeriesPageInner({ pk }: { pk: number }) {
         endDate: toApiDateUnsafe(fromUIDateUnsafe(values.endingDate)),
         endTime: values.endTime,
         weekdays: values.repeatOnDays,
-        bufferTimeBefore: buffers.before?.toString(),
-        bufferTimeAfter: buffers.after?.toString(),
+        bufferTimeBefore: (buffers.before ?? 0).toString(),
+        bufferTimeAfter: (buffers.after ?? 0).toString(),
         skipDates: skipDates.map((x) => toApiDateUnsafe(x)),
       };
       const mutRes = await mutate({ variables: { input } });