Prevent shuttle arriving at same stop from firing the SHUTTLE_WILL_ARRIVE_AT_STOP event

src/repositories/shuttle/eta/RedisSelfUpdatingETARepository.ts

@@ -119,6 +119,9 @@ export class RedisSelfUpdatingETARepository extends BaseRedisETARepository imple
   ) {
     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;