Leap Attack change?

[Professor Frink]

Playing in the flayer jungle (single player 1.10 final), I have noticed that leap-attacking to kill the shamans causes the whole crowd I fly over to take a swing at me (causing damage and attacker-takes-damage sparks when they hit). I'm not 100% sure, but it seemed like I would simply fly over enemies unharmed in older versions, and this change seems quite bad for my poor barbarians... Is this new in 1.10, or did I just not notice before?

what % of my regular standing-still defense do i get while flying?

-- frink