getAtLocation returning an empty list

[ggutenberg]

I've tried the following code, but it's failing to retrieve any snapshots. Using the node.js library works fine with the same center coordinates and same Firestore collection.

Working (node.js):

export const getNear = async (center: number[], radius: number) => {
  const geofirestore: GeoFirestore = new GeoFirestore(firestore);
  const geocollection: GeoCollectionReference = geofirestore.collection(
    "businesses"
  );
  const query: GeoQuery = geocollection.near({
    center: new admin.firestore.GeoPoint(center[0], center[1]),
    radius
  });
  const queryResults = await query.get();
  console.log(queryResults.docs);
  return queryResults.docs.map(doc => doc.data());
};

const getNearResponse = await business.getNear(
  [-1.7970149, -80.757148],
  1000
);

Not working (Dart):

  _populateBusinesses() async {
    final GeoFirestore geocollection =
        GeoFirestore(firestore.collection('businesses'));
    final queryLocation = GeoPoint(-1.7970149, -80.757148);
    List<DocumentSnapshot> snapshots =
        await geocollection.getAtLocation(queryLocation, 1000);
    // snapshots is always an empty List
    final documents = snapshots.map((doc) {
      return doc.data;
    }).toList();
    setState(() {
      _documents = documents;
    });
  }

I managed to trace the calls into this lib, and it seems the issue is occurring in queriesAtLocation(). Specifically in this series of calls:

    queries.add(queryForGeoHash(geoHash, queryBits)); // queries.single: GeoHashQuery
    queries.add(queryForGeoHash(geoHashE, queryBits)); // queries.single: GeoHashQuery
    queries.add(queryForGeoHash(geoHashW, queryBits)); // queries.single: GeoHashQuery
    queries.add(queryForGeoHash(geoHashN, queryBits)); // queries.single: Unhandled exception: Bad state: Too many elements
    // After this things seem broken
    queries.add(queryForGeoHash(geoHashNE, queryBits));
    queries.add(queryForGeoHash(geoHashNW, queryBits));
    queries.add(queryForGeoHash(geoHashS, queryBits));
    queries.add(queryForGeoHash(geoHashSE, queryBits));
    queries.add(queryForGeoHash(geoHashSW, queryBits));