Prevent invalid bbox polygons/points
Prevent invalid bbox polygons/points

Note that v.to_f returns 0 for nil or non-numeric strings, but Float(v) will raise an error in those cases

splashblot/dronedb,CartoDB/cartodb,CartoDB/cartodb,CartoDB/cartodb,splashblot/dronedb,splashblot/dronedb,splashblot/dronedb,CartoDB/cartodb,splashblot/dronedb,CartoDB/cartodb