[ODE] strange hinge joint behaviour: bug?

[Mauro G. Todeschini]

Hi,
	I created a hinge joint between 2 bodies: b1 and b2.

dJointAttach(joint, b1, b2);

I set the joint parameters (anchor axis and so on).
I set LoStop=0.0f and HiStop=2.0f.
I fixed b1 to the environment with a fixed joint.
The joint works but if I attach b2 directoly to the world

dJointAttach(joint, 0, b2);

with exactly the same joint parameters, the joint lets b2 rotate in the
opposite direction; as if i changed LoStop to -2.0f and HiStop to 0.0f.
Has anyone else experienced the same behaviuor?
It seems strange to me but I'm not really sure It is a ODE bug.

I'm using a recent ODE SVN version.

Bye and Thanks

-- 
Mauro G. Todeschini