public Spatial oldDeepClone() {
        Geometry geomClone = clone(true);
        geomClone.mesh = mesh.deepClone();
        return geomClone;
    }
Create a deep clone of the geometry. This creates an identical copy of
the mesh with the vertex buffer data duplicated.
jme3-core/src/main/java/com/jme3/scene/Geometry.java