Fix error when memory dumping classes with no name
Fix error when memory dumping classes with no name

CartoDB/cartodb,splashblot/dronedb,bloomberg/cartodb,bloomberg/cartodb,bloomberg/cartodb,codeandtheory/cartodb,codeandtheory/cartodb,bloomberg/cartodb,splashblot/dronedb,bloomberg/cartodb,CartoDB/cartodb,splashblot/dronedb,CartoDB/cartodb,splashblot/dronedb,splashblot/dronedb,CartoDB/cartodb,codeandtheory/cartodb,codeandtheory/cartodb,codeandtheory/cartodb,CartoDB/cartodb