message: ensure model initialized on ANY trackable attr set
diff: @@ -319,7 +319,7 @@ class Model(base_layer.Layer, version_utils.ModelVersionSelector):
  super(Model, self).__setattr__(name, value)
  return
  - if all(
  + if any(
  isinstance(v, (base_layer.Layer,
  data_structures.TrackableDataStructure)) or
  trackable_layer_utils.has_weights(v) for v in nest.flatten(value)):
  