@Override
    public void read(JmeImporter im) throws IOException {
        InputCapsule ic = im.getCapsule(this);
        translations = (CompactVector3Array) ic.readSavable("translations", null);
        rotations = (CompactQuaternionArray) ic.readSavable("rotations", null);
        times = ic.readFloatArray("times", null);
        scales = (CompactVector3Array) ic.readSavable("scales", null);
        trackSpatial = (Spatial) ic.readSavable("trackSpatial", null);
    }
Callback from {@link com.jme3.util.clone.Cloner} to convert this
shallow-cloned track into a deep-cloned one, using the specified cloner
to resolve copied fields.

@param cloner the cloner currently cloning this control (not null)
@param original the track from which this track was shallow-cloned
(unused)
jme3-core/src/main/java/com/jme3/animation/SpatialTrack.java