anchor.diff:      onDowngradeCalled = false;
       onUpgradeCalled = false;
     }
  -
   
     Future<Database> open(String path, {int version}) async {
       reset();
  
positive.code:       ]);
        await db.close();
      });
    }
  }
  
  
negative.code:   bool onDowngradeCalled;
    bool onUpgradeCalled;
  
    OnDatabaseCreateFn onCreate;
    OnDatabaseConfigureFn onConfigure;
    OnDatabaseVersionChangeFn onDowngrade;
  