Upgrade to 2.7.5 - Property '$children' does not exist on type 'never'.

[2-5]

Version

2.7.5

Reproduction link

https://codesandbox.io/s/vue-typescript-example-forked-hvzpki?file=/src/main.ts

Steps to reproduce

import Vue from "vue"

import App from "./components/App.vue"

export const main = new Vue({
  el: "#app",
  render: (createElement) => createElement(App),
})

export function getContainerComponent() {
  return main.$root.$children[0].$children[0]
}

What is expected?

no typescript error

What is actually happening?

After upgrading from 2.7.4 to 2.7.5 the code above fails to compile:

ERROR in ./src/main.ts:12:21
TS2339: Property '$children' does not exist on type 'never'.
    10 |
    11 | export function getContainerComponent(): Vue {
  > 12 |   return main.$root.$children[0].$children[0]
       |                     ^^^^^^^^^
    13 | }

[pasteusernamehere]

Seeing a similar error when accessing $options: component?.$parent?.$options?.name. Compiled fine under 2.7.4.

[tschni]

I have the same problem when I try to access this.$root

[JoergHeinicke5005]

Same here:
src/main/client/js/mixin/action/SentAction.ts:47:22 - error TS2339: Property '$emit' does not exist on type 'never'.
47 this.$root.$emit(EventType.PUBLISH_GLOBAL_EVENT, sendEvent);