Describe the bug
autocomplete triggers change event again on blur

To Reproduce
Steps to reproduce the behavior: https://stackblitz.com/edit/pallqy?file=src%2Fmain.vue

type a in the input
select 'Austria' for example - change event is triggered
click outside of the autocomplete - change event is triggered again

Expected behavior
the second change event is not triggered if the value is not changed

I'm submitting a...

• Bug report

Current behavior

readonly prop does not work in Autocomplete
https://stackblitz.com/edit/ertuag-b1ggo2?file=src/main.vue

Expected behavior

readonly prop does SDHOULD work in Autocomplete