But so does this one. It´s a Hungarian shepherd´s knife, which I got cheap, as well, on the Jagd und Hund expo. Contrary to the Laguiole, the blade does not make contact with the spring, when closed. It has not an indention in the blade´s root, but the very special layout of the handle together with a stiff spring makes for a safe handler, too, when used for reasonable tasks...
Now the Yatagan was a knife or short saber of Turkish make. https://en.wikipedia.org/wiki/Yatagan shows you some examples. These blades have a very sleek and slender recurve blade . I would rather call the Laguiole and the shepherd knives´blade shape somewhat of a clip point, but it is clearly evident that there also is at least some evidence. For instance, the Laguiole, native to the Massif Central of France, most certainly derives from an Arabo-Hispanic (or "Mauric") predecessor of the Navaja and the Navaja folding knife of the 19th century. The Yatagan was also common in Hungary... et voilá: There also was a strong influence of Turkish culture, being a commonplace amongst Historians.
The message is simple: France and Hungary are quite a distance apart. But there´s still a lot they have in common, apart from humble blade shapes.
Look to what we have in common... and enjoy your snack. ;-)