c65e046043
actdim has a default value of -1 (==unset), which means it currently gets saved for all actuators. After this change, it will only be saved if the value is > 1, errors are thrown for stateful actuators with actdim=0 and stateless actuators with actdim>0. PiperOrigin-RevId: 520627313 Change-Id: Ia498dae5c7314cfaa0995f8077d297c2339a5c35