Using factory function and type assertion with props causes type error

Version

2.6.8

Reproduction link

https://github.com/wakame-isono/vue-typescript-issue

Steps to reproduce

1. Use vue-cli init with TypeScript without using class-style.
2. Add code to src/components/HelloWorld.vue as follow.

<script lang="ts">
import Vue, { PropType } from 'vue'

interface Test {
  a: string;
}

export default Vue.extend({
  name: 'HelloWorld',

  props: {
    msg: String,
    test: {
      type: Object as PropType<Test>,
      default: () => ({})
    }
  },

  created () {
    console.log(this.test)
  }
})
</script>

What is expected?

Type errors does not occur.

What is actually happening?

Property ‘test’ does not exist on type ‘ComponentOptions<Vue, DefaultData<Vue>, DefaultMethods<Vue>, DefaultComputed, PropsDefinition<Record<string, any>>, Record<string, any>>’.

---

It did not occur version 2.5.17.

[wakame-isono]

I have used with Vue + TypeScript without using class-style since ver 2.5. If possible, I would like to get solutions to this problem without using these packages 🙇‍♀️ 🙏

[wakame-isono]

Thank you very much for help 🙇‍♀️ 🙏 🙏 It works!! I defined incorrect an association type and missed that typs of PropOptions type was changed 😫💦

Thank you for sparing your time for this issue and I will close the issue myself 🙇‍♀️ 🙏 🙏