hapi server method promise bug reproduction

server.js

var Hapi = require('hapi');

const server = new Hapi.Server({
  cache: [
    {
      name: 'redisCache',
      engine: require('catbox-redis'),
      host: '127.0.0.1',
      partition: 'cache'
    }
  ]
});

server.connection({
  port: 8000
});

server.method('test', function () {
  return Promise.resolve('works');
}, {
  // if you remove the cache options it works as expected
  cache: {
    cache: 'redisCache',
    expiresIn: 30 * 1000,
    generateTimeout: 100
  }
});

server.route({
  path: '/test',
  method: 'GET',
  handler: function (request, reply) {

    server.methods
      .test()
      .then(function (msg) {
        reply(msg);
      })
      .catch(function (err) {
        reply(err);
      });
  }
});

server
  .start()
  .then(function() {
    console.log('check localhost:8000/test');
  });