Specifying default value when reading a key that doesn't exist is returning null

[khoafornia]

Steps to Reproduce

1. Open a Hive box
2. Specify a default value of false and read a key that does not exist.
3. Notice null is returned instead of false.

Code sample

await Hive.openBox('hiveBoxName');
return Hive.box('hiveBoxName').get('keyThatDoesNotExist', defaultValue: false);

Version

• Platform: iOS, Android
• Flutter version: 3.0.4
• Hive version: 2.1.0