Bakery: Crispy crescent rolls with poppy seeds

Fresh fruit is now slowly replaced by cottage cheese, jams and poppy-seed as filling for pastry and cakes. Well, autumn is currently in full bloom. Thank goodness we still have apples, but before they are also gone completely, brace yourselves for winter, and prepare one of the best croissants (or crescent rolls) with poppy-seed filling. The procedure to make them is not very easy, I would rather call it toilsome, but if you do everything exactly as described, there is no way to make a mistake. And they're delicious!
For the recipe in Polish go here, and in English go here but remember to add the filling!