Retain rescheduleUid when picking a date

lib/events/EventManager.ts

@@ -45,9 +45,8 @@ export default class EventManager {
   }
 
   public async update(event: CalendarEvent, booking: PartialBooking): Promise<Array<EventResult>> {
-    const results: Array<EventResult> = [];
     // First, update all calendar events.
-    results.concat(await this.updateAllCalendarEvents(event, booking));
+    const results: Array<EventResult> = await this.updateAllCalendarEvents(event, booking);
 
     // If and only if event type is a video meeting, update the video meeting as well.
     if (EventManager.isIntegration(event.location)) {
@@ -95,7 +94,7 @@ export default class EventManager {
     booking: PartialBooking
   ): Promise<Array<EventResult>> {
     return async.mapLimit(this.calendarCredentials, 5, async (credential) => {
-      const bookingRefUid = booking.references.filter((ref) => ref.type === credential.type)[0].uid;
+      const bookingRefUid = booking.references.filter((ref) => ref.type === credential.type)[0]?.uid;
       return updateEvent(credential, bookingRefUid, event);
     });
   }

pages/[user]/[type].tsx

@@ -48,9 +48,17 @@ export default function Type(props): Type {
 
     router.replace(
       {
-        query: {
+        query: Object.assign(
-          date: formattedDate,
+          {},
-        },
+          {
+            date: formattedDate,
+          },
+          rescheduleUid
+            ? {
+                rescheduleUid: rescheduleUid,
+              }
+            : {}
+        ),
       },
       undefined,
       {