[BUG] --ignore-file-override option is ignored

I run generation using openapitools/openapi-generator-cli.

const DOCKER_IMG = 'openapitools/openapi-generator-cli';
const API_PATH = 'api/api.yaml';
const TEMPLATES_PATH = 'templates';
const IGNORE_FILE = '.openapi-generator-ignore';

const child = spawn('docker', [
  'run',
  '--rm',
  '--net=host',
  `--user=${uid}:${uid}`,
  '--mount',
  `type=bind,source=${path.join(__dirname)},target=/local`,
  DOCKER_IMG,
  'generate',
  '-i',
  path.join('/local', API_PATH),
  '-t',
  path.join('/local', TEMPLATES_PATH),
  '-c',
  path.join('/local', CONFIG),
  '--ignore-file-override=' + path.join('/local', IGNORE_FILE),
  '-g',
  'typescript-fetch',
  '-o',
  path.join('/local', 'output'),
]);

And whevern I write inside .openapi-generator-ignore gets absolutely ignored.

Start by reproducing the generate command from the Docker example with --ignore-file-override and .openapi-generator-ignore, then trace how the CLI handles that option. Done means ignore patterns in the override file prevent the corresponding generated files from being written and the behavior is covered by a regression test.