Javascript Mongoose post hook在使用await保存时不返回Postman响应

我正在创建一个后钩创建一个鼻涕虫后，一个后已保存.当我try 使用Postman判断我的结果时，过程进入不确定状态(没有返回数据).

POST挂钩的代码:

PostsSchema.post("save", async function (doc, next) {
  try {
    doc.postSlug = slugify(doc.postTitle, { lower: true });
    await doc.save();
    return next();
  } catch (err) {
    console.log("inside catch method");
    return next(createError(500, err.message));
  }
});

我使用的路由代码:

module.exports.createPost = async (req, res, next) => {
  const { postTitle, postContent, postAuthor } = req.body;
  try {
    // check if author exist
    const authorExist = await AccountsModel.findById(postAuthor);
    if (!authorExist) {
      return next(createError(404, `Author ID: ${postAuthor} Not Found`));
    }
    // create post
    console.log("route 1")
    const postNew = new PostsModel({
      postTitle: postTitle,
      postContent: postContent,
      postAuthor: postAuthor,
    });
    await postNew.save();
    // populate data for return
    let postCreated = await postNew.populate("postAuthor");
    return res.status(200).json({
      code: 1,
      success: true,
      message: "New Post Created",
      data: postCreated,
    });
  } catch (error) {
    return next(createError(500, error.message));
  }
};

我确实通过删除doc.save()前面的await来解决这个问题:

PostsSchema.post("save", async function (doc, next) {
  try {
    doc.postSlug = slugify(doc.postTitle, { lower: true });
    doc.save();
    return next();
  } catch (err) {
    console.log("inside catch method");
    return next(createError(500, err.message));
  }
});

另外，使用.then()也返回结果:

PostsSchema.post("save", async function (doc, next) {
  doc.postSlug = slugify(doc.postTitle, { lower: true });
  console.log(1);
  doc
    .save()
    .then(() => {
      console.log(2);
      return next();
    })
    .catch((error) => {
      return next(createError(500, err.message));
    });
});

但发现了一些其他的帖子，什么已经等待和答案表明，这不是问题:

• How to properly make a Mongoose post hook async
• Mongoose post save hook , update the document
• Async function in mongoose pre save hook not working. prehook似乎与await一起工作得很好.
• https://stackoverflow.com/a/76738359/14723731.这个和我的一样，他们没有使用await方法

所以，我想知道是等待打破了这个过程还是别的什么？