Not Conan, but Taurus of Nemedia in Tower of the Elephant may have.
Despite being corpulent, he “almost seemed to glide over the edge” of walls.
So either double jump or sorcery.
Sadly no corrupted Agility to explain unnatural movement in game yet.
I could go on and cry now: “reeee, PvE nerf requests ruin my gameplay!”. But I am not this kind of person. It is definitely a bug, because you can jump again after touching a wall. Before it was only possible to jump again when you touched the ground (climbing did not count).
But tbh this is such a minor bug, there are other more serious bugs that should be fixed first. Especially the performance. HUGE problem right now on basically every populated server.