private void onContextUpdate(ContextUpdateEvent e) {
        e.getSubject(ServerPlayer.class).ifPresent(p -> requestUpdate(p.uniqueId()));
    }
Calls {@link CommandManager#updateCommandTreeForPlayer(ServerPlayer)}
when a players permissions change.
sponge/src/main/java/me/lucko/luckperms/sponge/listeners/SpongeCommandListUpdater.java