When Kulan was in Toray she would say during interviews that she's Slovakian. Maybe it's her choice? and they took that into consideration but I'm just guessing here
It's off-topic, but I'd still like to answer again:
My statement is really about purely legal matters. At the time Jana Kulan accepted Azerbaijani citizenship, Slovak law didn't actually allow dual citizenship. So, by accepting Azerbaijani citizenship, she should have lost her Slovak citizenship. So much for the theory. Because of the "public" nature of her case, the Slovak state could have granted an exception for her, or it could simply turn a blind eye and know nothing about her acceptance of Azerbaijani citizenship.