Mousewheel scroll event issue

[Happenstance]

Binding a move trigger ($mvTriggerCount0, etc.) to the mousewheel zaxis seems to be bugged. Scrolling the mouse wheel causes the trigger to be constantly set (even after restarting a mission) which in turn spams whatever function it's bound to.

Could someone test this out and confirm what I'm seeing?

 

moveMap.bind(mouse, zaxis, bunnyHop);

function bunnyHop(%val)
{
    $mvTriggerCount2++;
}