check for null in georeference
check for null in georeference

bloomberg/cartodb,splashblot/dronedb,DigitalCoder/cartodb,dbirchak/cartodb,UCL-ShippingGroup/cartodb-1,nuxcode/cartodb,codeandtheory/cartodb,UCL-ShippingGroup/cartodb-1,thorncp/cartodb,nuxcode/cartodb,UCL-ShippingGroup/cartodb-1,nyimbi/cartodb,bloomberg/cartodb,nyimbi/cartodb,dbirchak/cartodb,thorncp/cartodb,DigitalCoder/cartodb,UCL-ShippingGroup/cartodb-1,bloomberg/cartodb,future-analytics/cartodb,dbirchak/cartodb,CartoDB/cartodb,future-analytics/cartodb,dbirchak/cartodb,splashblot/dronedb,codeandtheory/cartodb,nyimbi/cartodb,splashblot/dronedb,DigitalCoder/cartodb,nuxcode/cartodb,future-analytics/cartodb,raquel-ucl/cartodb,raquel-ucl/cartodb,codeandtheory/cartodb,thorncp/cartodb,bloomberg/cartodb,UCL-ShippingGroup/cartodb-1,thorncp/cartodb,future-analytics/cartodb,raquel-ucl/cartodb,nuxcode/cartodb,DigitalCoder/cartodb,dbirchak/cartodb,raquel-ucl/cartodb,nyimbi/cartodb,future-analytics/cartodb,DigitalCoder/cartodb,bloomberg/cartodb,splashblot/dronedb,codeandtheory/cartodb,CartoDB/cartodb,CartoDB/cartodb,nuxcode/cartodb,thorncp/cartodb,raquel-ucl/cartodb,CartoDB/cartodb,CartoDB/cartodb,codeandtheory/cartodb,nyimbi/cartodb,splashblot/dronedb