84f20ffb66
*** Reason for rollback *** breakage resulting in "inertia must have positive eigenvalues" when parsing URDF's *** Original change description *** Move fullinertia from mjCAlternative to mjCBody. *** PiperOrigin-RevId: 604677400 Change-Id: Iab8263b5b0aee310bd75404e314f3b707ce3300e