[AC-6255] ArrowDB query coordinates with or condition

I am trying to query users for coordinates with or clause. Below is the example: URL: https://api.cloud.appcelerator.com/v1/users/query.json?key=key&pretty_json=true&response_json_depth=2 Request: where:{"$or":[{"coordinates":{"$nearSphere":[79.0521694,21.1310236],"$maxDistance":0.0156}}, {"coordinates":{"$nearSphere":[78.0521694,21.1310236],"$maxDistance":0.0156}}]} count:true I am getting below error. Response: { "meta": { "code": 400, "status": "fail", "message": "$and/$or/$nor must be a nonempty array", "method_name": "queryUsers" } }