Show Kazakhstan flag in PhoneNumberTextField

[vveidi]

Russia and Kazakhstan share the same country code +7. And if you input a valid Kazakhstan phone number in PhoneNumberTextField, it shows a Russian flag. It happens because during parsing it uses main territory for displaying country's flag.
Added a check that if phone's countryCode is 7, then we should use defaultRegion instead

Closes #688

[elitalon]

@bguidolim Are we sure this change actually does what it says? Or rather, are we sure it behaves as intended in all cases and not just when using PartialFormatter together with PhoneNumberTextField?

In an app I'm working on, where we've been using PhoneNumberKit facilities with our own UITextField instead of PhoneNumberTextField, currentRegion seems to keep returning RU whenever a +7 is present at the beginning of the phone number.

Maybe I lack understanding of how this works behind the scenes, but I don't see in the code where a change from RU to KZ would happen solely based on countryCode(for: self.defaultRegion). At the very least the area code should also be considered.

Could you please shed some light on this? Thanks!

[rastaman111]

Hello. As far as I know, Russian numbers start with +79**, and in Kazakhstan with +77**. Most likely the Kazakh flag will appear in this order

@bguidolim Are we sure this change actually does what it says? Or rather, are we sure it behaves as intended in all cases and not just when using PartialFormatter together with PhoneNumberTextField?

In an app I'm working on, where we've been using PhoneNumberKit facilities with our own UITextField instead of PhoneNumberTextField, currentRegion seems to keep returning RU whenever a +7 is present at the beginning of the phone number.

Maybe I lack understanding of how this works behind the scenes, but I don't see in the code where a change from RU to KZ would happen solely based on countryCode(for: self.defaultRegion). At the very least the area code should also be considered.

Could you please shed some light on this? Thanks!