Fix return value on error
Fix return value on error

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