Plugin not working with new database

[gonzam88]

I was using this plugin (slug field specifically) in development with an already initialized payload. Worked fine. When deployed to an empty project it threw an error. Reproduced with empty project.
Steps to reproduce

1. Start new payload project npx create-payload-app@latest
2. Add better fields yarn add @nouance/payload-better-fields-plugin
3. Add slug field to users collection

import { CollectionConfig } from 'payload/types'
import { SlugField } from '@nouance/payload-better-fields-plugin'

const Users: CollectionConfig = {
  slug: 'users',
  auth: true,
  admin: {
    useAsTitle: 'email',
  },
  fields: [
    {
      name: 'title',
      type: 'text',
    },
    ...SlugField(
      {
        name: 'slug',
        admin: {
          position: 'sidebar',
        },
      },
      {
        useFields: ['title', 'subtitle'],
      },
    ),
  ],
}

export default Users

4. Run docker docker-compose up and open localhost:3000

Error reports Component.js:78 Uncaught TypeError: Cannot read properties of undefined (reading 'value') pointing to this line return fields .filter(function (item) { return Boolean(item.value); })