AddExplosionForce and Pivot

Hi,

I found a strange behaviour of the Pivot Point.

I have created ad empty game object (CastleEO) with no rigidbody or collider and added in it some other game object (with rigidbody and collider). I have checked the pivot point and the center point axys, both centered correctly in the center of my objects.

BUT, when I use AddExplosionForce on CastleEO, the center axys move correctly but the pivot axys remain in the pre-explosion position.

I think the problem here is that CastleEO doesn't have rigidbody, can You confirm?

How can I reset the pivot point to the position post-explosion OR how can I make pivot center equal to center axys ?

Thank you!