Prevent shuttle arriving at same stop from firing the SHUTTLE_WILL_ARRIVE_AT_STOP event

src/repositories/shuttle/eta/InMemorySelfUpdatingETARepository.ts

@@ -93,6 +93,9 @@ export class InMemorySelfUpdatingETARepository extends BaseInMemoryETARepository
   private async handleShuttleWillArriveAtStop(shuttleArrival: ShuttleStopArrival): Promise<void> {
     const lastStopTimestamp = await this.shuttleRepository.getShuttleLastStopArrival(shuttleArrival.shuttleId);
     if (lastStopTimestamp) {
+      // disallow cases where this gets triggered multiple times
+      if (lastStopTimestamp.stopId === shuttleArrival.stopId) return;
+
       const shuttle = await this.shuttleRepository.getShuttleById(lastStopTimestamp.shuttleId);
       if (!shuttle) return;