Cannot override 'avoid-leaking-state-in-ember-objects' plugin on specific ember-cli-mirage folder

[hakilebara]

This ember-cli-mirage code documented here will raise an eslint ember/avoid-leaking-state-in-ember-objects flag:

// mirage/serializers/blog-post.js
import ApplicationSerializer from './application';

export default ApplicationSerializer.extend({
  include: ['comments']
});

I tried adding an additional entry to overrides in .eslintrc.js to add include as an ignored property of ember/avoid-leaking-state-in-ember-objects:

module.exports = {
  globals: {
    server: true,
  },
  root: true,
  parserOptions: {
    ecmaVersion: 2017,
    sourceType: 'module',
  },
  plugins: ['ember'],
  extends: ['eslint:recommended', 'plugin:ember/recommended'],
  env: {
    browser: true,
  },
  rules: {},
  overrides: [
    // node files
    {
      files: ['testem.js', 'ember-cli-build.js', 'config/**/*.js'],
      parserOptions: {
        sourceType: 'script',
        ecmaVersion: 2015,
      },
      env: {
        browser: false,
        node: true,
      },
    },

    // test files
    {
      files: ['tests/**/*.js'],
      excludedFiles: ['tests/dummy/**/*.js'],
      env: {
        embertest: true,
      },
    },
    // mirage files
    {
      files: ['mirage/serializers/**'],
      rules: {
        'ember/avoid-leaking-state-in-ember-objects': [1, ['include']],
      },
    },
  ],
};

This doesn't work, the linter flag is still raised.

However if the override is defined on mirage/**

    // mirage files
    {
      files: ['mirage/**'],
      rules: {
        'ember/avoid-leaking-state-in-ember-objects': [1, ['include']],
      },
    },

include is properly added to the ignored list and the eslint test passes. Is there something wrong in the way in define files?

Here is a demo app of the issue

[hakilebara]

referencing #202