If you hit edit on any page, that already has AKAs, the drop down doesn't appear anymore. All the countries populate.

https://pics.imcdb.org/19003/24/screenshot2024-06-19145122.17.jpg

And I just tried to add some AKAs for a movie and the site won't let me assign the country. If you try it leaves it blank when adding multiple AKAs. See this movie for example.

https://imcdb.org/movie_54279-School-for-Scoundrels.html