fixed error in addBsonFilter 'right-hand-value-empty-check
fixed error in addBsonFilter 'right-hand-value-empty-check

McMutton/fiware-orion,telefonicaid/fiware-orion,McMutton/fiware-orion,Fiware/data.Orion,Fiware/data.Orion,jmcanterafonseca/fiware-orion,McMutton/fiware-orion,McMutton/fiware-orion,Fiware/context.Orion,jmcanterafonseca/fiware-orion,jmcanterafonseca/fiware-orion,telefonicaid/fiware-orion,Fiware/data.Orion,Fiware/context.Orion,Fiware/context.Orion,Fiware/data.Orion,Fiware/context.Orion,Fiware/context.Orion,McMutton/fiware-orion,jmcanterafonseca/fiware-orion,telefonicaid/fiware-orion,Fiware/data.Orion,Fiware/context.Orion,McMutton/fiware-orion,telefonicaid/fiware-orion,Fiware/data.Orion,telefonicaid/fiware-orion,jmcanterafonseca/fiware-orion,jmcanterafonseca/fiware-orion,McMutton/fiware-orion,telefonicaid/fiware-orion