users controller change preventing error when vis is nil
users controller change preventing error when vis is nil

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