Havok 4: llGroundRepel using top of bounding box, not the middle of the bounding box like Havok 1, also attracts downward

Steps to repro:

1. take this script:

default
{

    touch_start(integer total_number)
    {
llSetBuoyancy(1.0);
llSetStatus(STATUS_PHYSICS, TRUE);
llSetStatus(STATUS_PHANTOM, TRUE);
llGroundRepel(0.1, TRUE, 4.0);

    }
}

place it in a cube, and duplicate above and below water at various heights, then touch.


result:

Havok 4:

Cubes below the water rise until the TOP of the bounding box is at llGroundRepel height.

Cubes above the water DROP until the TOP of the bounding box is at llGroundRepel height even though llBouyancy is 1.0
(commenting out the llGroundRepel allows the cube to remain floating)

Havok 1:

Cubes below the water rise until the MIDDLE of the bounding box is at llGroundRepel height.

Cubes above the water don't do anything at all, since llGroundRepel SHOULD NOT ATTRACT if llBouyancy is 1.0