Comment 3 for bug 577581

I just tried with scripts/test/clump.py and got no weird effects.

Running

O.bodies.appendClumped([utils.sphere((0,0,0),1),utils.sphere((0,0,2),1)])
print O.bodies[2].state.mass, O.bodies[2].state.inertia, O.bodies[2].state.pos, O.bodies[2].state.ori

gave me this with eigen:

8377.58040957 Vector3(11728.612573401895,11728.612573401895,3351.0321638291125) Vector3(0,0,1) Quaternion((1,0,0),0)

and this with wm3:

8377.58040957 Vector3(3351.0321638291116,11728.612573401895,11728.612573401895) Vector3(0,0,1) Quaternion((0.57735026918962584,0.57735026918962584,-0.57735026918962584),2.0943951023931957)

so it only seems as difference in the ordering of principal axes (didn't check by hand, but it looks so)

I should make one that I compute by hand and check it.