Bug: assimpd export GoldSrc MDL -> OBJ possibly changes model origin? about assimp HOT 2 OPEN

I think this may be related to bones. On another model I found, which is stored off center, it actually ends up centered again in Hammer Editor/JACK/Counter Strike 1.6, roughly around the point where the bone position is. But the assimp conversion remains off-center. So I guess one might have to move/transform all the vertices so that centered around the bone. Tho idk exactly how one would deal with rotation in the bone struct, which theoretically can be set, or with multiple bones.

from assimp.

This tool seems to have the correct logic for having the origin in the right place: http://www.milkshape3d.com/hlmv/index.html

If you activate the display of the ground plane, it's exactly where I think it should be. Doesn't seem to be as simple as taking the first bone like I thought initially, though in one case it coincided (Bones can be drawn too as red dots).

And here's the two models for reference:
assimp mdl debug models.zip

from assimp.