Vue: Watch immediate=true has no effect when declared in component options

[Toilal]

Version

2.5.9

Reproduction link

https://jsfiddle.net/Toilal/q976rqrw/

Steps to reproduce

Open JSFiddle and see

What is expected?

Handler from component options should be invoked immediatly like handler from $watch method

What is actually happening?

Handler from component options is not invoked initially

[javoski]

For watch option, just write in this way:

watch: {
  message: {
    immediate: true,
    handler: function () {
      ...
    }
  }
}

https://jsfiddle.net/q976rqrw/4/

[Toilal]

Oops sorry for noise. Strange that TypeScript didn't catched this though.