>So, if I understand correctly, in this case it was not only a change in name, but rather, the new name reflected a more fundamental change, right?

Hilmar,
Yougoslavia appears in 1919, when Kingdom Serbia annexed a lot of territories form their lost I WorldWar neighbors.
In 1991 it was divided to many independent republics – Slovenia, Hrvatska, Bosnja, Macedonia, Kosovo, Monte Negro & Serbia. Some of them lead a war to receive their independence. Last one, which left Serbia is Monte Negro.