Country selection on User profile page doesn't show many countries

Yes, this is definitely a bug, but I don't know where this is happening.

The Drupal Core list of countries DOES contain Curaçao (It also contains "Netherlands Antilles" for backwards compatibility - you don't want to remove that because it would corrupt any database row that referred to that country. User profiles for one, who knows what else).

Drupal Core added Curaçao to the country list on 19 Nov 2011 in issue #1313342: Curacao should appear in standard_country_list(). And it's in both Drupal 7 and Drupal 8. I don't know why drupal.org isn't using that information.

So this issue is definitely in the right place in the Webmaster's issue queue - it's just the drupal.org website that's wrong, not Drupal itself.

A brief look at the country choices in my profile show a number of other missing countries. The website lists only 229 countries, while Drupal 7 includes/iso.inc lists 250 countries and Drupal 8 core/lib/Drupal/Core/Locale/CountryManager.php lists 258 countries.

Missing from the website (this is not a complete list):

• Aland Islands
• Curaçao
• Saint Barthélemy
• Sint Maarten

Some are also named strangely. For example, drupal.org says "Cote D Ivoire" whereas Drupal Core 7 uses "Ivory Coast" and Drupal 8 core uses the correct "Côte d’Ivoire"

Also, the countries are sorted strangely. They're not sorted alphabetically on drupal.org, but they're not sorted by 2-character country code either.

From issues like #129685: Missing country at user creation form and #633586: Iraq not in the list of countries (drop-down, user accounts), I take Drupal.org was once using a profile field. (Otherwise, I would not have been able to add a new country in the list.) Maybe now there is a user entity field for country (which I am not able to edit).

If it's so, the values are contained in a database table. That would explain the difference between what Drupal lists as country, and what can be selected on Drupal.org.

The Country field is imported as feature in drupalorg_user.features.field_base.inc. Editing or adding countries in that field requires to edit a feature.

In which way can we contribute to fix the issue? Is a patch for that file sufficient, or is it required to do something different?

All the examples from #3 have already been fixed as part of #2672184: Store country codes instead of words.