Mongoose virtuals:setter后的验证错误

const User = new mongoose.Schema(
  {
    hashedPassword: { type: String, required: true },
  }
)

在保存之前,我创建了一个用于散列值的虚拟字段。

User.virtual('password')
  .get(function () { return this.hashedPassword })
  .set(function (password) {
    bcrypt.hash(password, 10)
      .then((hash) => {
        this.hashedPassword = hash
      })
  })

如果我发送查询(正文),我会收到错误

// Query
User.create(req.body)
    .then((newUser) => {
....

// Body
{
  "email": "email@email.com",
  "password": "Test12345"
}

// Response
{
    "errors": {
        "hashedPassword": {
            "message": "Path `hashedPassword` is required.",
            "name": "ValidatorError",
...

我的错误在哪里?