Merge pull request #589 from mfn/patch-1

Keep "null"-ness of column even with model casts

src/Console/ModelsCommand.php

@@ -297,6 +297,10 @@ class ModelsCommand extends Command
                 continue;
             } else {
                 $this->properties[$name]['type'] = $this->getTypeOverride($realType);
+
+                if (isset($this->nullableColumns[$name])) {
+                    $this->properties[$name]['type'] .= '|null';
+                }                
             }
         }
     }