ah! goot to know I'm not the only one...
Overriding blocktopmenu function generateCategoriesMenu with this code does not work
class BlocktopmenuOverride extends Blocktopmenu
{
public function generateCategoriesMenu($categories, $is_children = 0)
{
die( var_dump ('hello I am an override') );
}
}
if I comment the parent function it works as expected
I've asked why in this post but so far nobody can tell why...
https://www.prestashop.com/forums/topic/420461-cant-override-blocktopmenu-function-generatecategoriesmenu/