title: Sequelize: I want to return all registries associated with a model if one of these registries has a specific key
body: <p>I have the tables <strong>posts</strong> and <strong>tags</strong> with a many-to-many relationship, and a junction table post_tags. I want to return all tags from a post if this post have one specific tag name.</p>
  <p>The idea is to filter all posts by a specific tag.</p>
  <p>I was doing like that:</p>
  <pre><code>const posts = await Post.findAll({
    include: {
      model: Tag,
      where: {
        name: 'specificTag',
      },
    },
  });
  </code></pre>
  <p>This way I can filter posts with a specific tag, but it's not return all others tags related to that post.</p>