Object.create works when used to replace a subobject on fw 0.14.4

object_create_works_simple.js

function reportConfigError(res, ec, em) {
  if(ec)
    console.log("Config update error", ec, em);
}

let bluConfig = Shelly.getComponentConfig("plugs_ui");

let on = Object.create(bluConfig.leds.colors["switch:0"].on);
on.rgb = [50, 0, 50];
bluConfig.leds.colors["switch:0"].on = on;

Shelly.call( "PLUGS_UI.SetConfig", { config: bluConfig}, reportConfigError );