Safari autofill international phone number

Hello!

Safari Autofill keeps removing the "+" sign from my phone number. I'm located in Finland and whenever I order something the phone should be provided in international format , i.e +358 for Finland and so on.

This is exactly how the phone is filled in my contact card and when I click on autofill it also shows a plus sign, but when I click to fill it is removed. It is very annoying to add it manually each time and it makes autofill useless for phone numbers.

Is there a way to fix this please?

The grey autofill dropdown box in Safari has the complete number with "+" and country code "358":

But then, on insertion it disappears and this is what Safari fills in:

The Chrome browser does it correctly

Any ideas how to fix this?

Don't even mind some hardcore low level terminal commands.

P.S: This Question was already asked here on Nov 11, 2017 9:08 PM by Dmitry Ra, but never answered: Safari autofill international phone number.