Empty reactive object doesn't have reactivity for new keys

[roman0x58]

Hi everyone! I'm using latest vue2 + composition-api (beta18) and I have an empty reactivity object in my component :

const obj = reactive({})

later I set new props to this object using set :

set(obj, prop, value)

this should trigger changes and I'm expecting that my view will refresh, but it doesn't. So If I replace reactive by ref({}) or initialize the reactive object with the prop it does work as expected.

sandbox example : https://codesandbox.io/s/late-river-lmze9

[hyf0]

fixed in #692 . @antfu maybe closes this one?

[tminich]

It still doesn't work correctly, at least not in computed. del seems to work (first click on 'Set by computed'), but set doesn't.
https://codesandbox.io/s/funny-agnesi-wr6i5

[github-actions]

Stale issue message

[shrpne]

I'm still experiencing the issue

https://codesandbox.io/s/beautiful-feather-qrjq4n?file=/src/components/TestCase.vue

[arielkuzminski]

Anybody got a solution for this? I need to create refs dynamically on the runtime (I don't know how much theres gonna be or how they are gonna be named). And then I need to do some filtering to them on user demand, and return still as reactive object so they affect original object.