Extension overwrite onlyCountries props

[yaki4]

If you pass onlyCountries props but puts a differents extension the component'll get the country depending on the extension instead of emitting an error.

Exemple: vue-tel-input-vuetify(:onlyCountries='["CA"]') => will show the component with canadian flag But it the user write +1 by default the american flag is shown. Or if i write +336 i've got the french flag. And i can't change the country. Also the component can return that the entered number is valid despite that number isn't from country selected.