public static void untagGlobal(Spatial s) {
        if (s instanceof Node) {
            Node n = (Node) s;
            for (Spatial sx : n.getChildren()) {
                untagGlobal(sx);
            }
        } else if (s instanceof Geometry) {
            s.setUserData("tags.env", null);
        }
    }
Untags the specified spatial as part of the environment for every
EnvironmentProbeControl.

@param s the spatial
jme3-core/src/main/java/com/jme3/environment/EnvironmentProbeControl.java