Casl: TypeError: Object prototype may only be an Object or null: undefined with @casl/mongoose v3.2.1

[0x557269656C]

Describe the bug

When invoking accessibleBy() with an ability instance that was created with an empty ruleset an error is raised by @casl/[email protected]

As of version @casl/[email protected] this behavior is not observed.

The generated error output is as follows (_paths have been redacted_):

TypeError: Object prototype may only be an Object or null: undefined
    at Function.create (<anonymous>)
    at c (/****/node_modules/@casl/mongoose/dist/es6c/index.js:1:545)
    at Function.u [as accessibleBy] (/****/node_modules/@casl/mongoose/dist/es6c/index.js:1:877)
    at Function.****.statics.__find (/****/models/Model.js:181:15)
    at run (/****/test.js:75:32)
    at processTicksAndRejections (internal/process/task_queues.js:97:5)
    at async /****/test.js:217:5

Potentially relevant issues: https://github.com/stalniy/casl/issues/287

To Reproduce
The following code reproduces the error:

  const casl    = require('@casl/ability');
  const ability = new casl.Ability([]);
  model.accessibleBy(ability, 'read').find({}).orFail(new NotFoundOrForbiddenError());

Where model is a mongoose model instance patched by the @casl/mongoose plugins.

Expected behavior
No error condition. Behavior as per @casl/[email protected]

CASL Version

@casl/ability - v5.1.2
@casl/mongoose - v3.2.1

Environment:
Node.JS v12.18.3

[stalniy]

Thanks for the issue! Yes, my bad. Will fix today.

[stalniy]

Fixed in 3.2.2