Vuetify: [Bug Report] v-combobox emits `change` event too late

[downace]

Versions and Environment

Vuetify: 1.2.5
Vue: 2.5.17
Browsers: Chromium 69.0.3497.81
OS: Ubuntu undefined

Steps to reproduce

1. Enter "bar"
2. Click "Submit"

Expected Behavior

Console output:

"change" "bar"
"submit" "bar"

Actual Behavior

Console output:

"submit" null
"change" "bar"
"change" "bar"

Reproduction Link

https://codepen.io/downace/pen/wYKzXw?editors=1011

Other comments

With v-text-field all works as expected

Also, change event is emitted twice

[KaelWD]

Possible duplicate of #4679

[KaelWD]

Workaround: https://codepen.io/anon/pen/YRQawa?editors=1011

[MatthewAry]

This workaround seems to work. I look forward to a fix though. Thanks!

[bviala]

The workaround works for me too.
A fix would be very nice tho.
A lot of people seem to have this issue, and it's known for quite a long time now: https://github.com/vuetifyjs/vuetify/issues/3424

[jacekkarczmarczyk]

Duplicate of #4679