Hound's teeth drop from inappropriate bone types after reload

According to houndbone.lua:

    if bonetype == 3 then
        inst.components.lootdropper:AddChanceLoot("houndstooth", .5)
    end

I'm reading this as "the tooth is supposed to drop from the skull" (which makes sense). Problem is, the bonetype var is not saved (so I guess it's re-generated on reload?), even though the animstate (the bone type as visible to the player) is:

local function onsave(inst, data)
    data.anim = inst.animname
end

local function onload(inst, data)
    if data ~= nil and data.anim ~= nil then
        inst.animname = data.anim
        inst.AnimState:PlayAnimation(inst.animname)
    end
end

As a result, the bone type visible to the player stays the same across reloads, but after reload it has no bearing on what will actually drop from the bones.