Tk-multi-breakdown : trying to get some publish fields in the hook_scene_operations hook


We are using the breakdown2 app.

I use a custom hook_scene_operations hook. Inside this hook, I would like to retrieve some information about the new versions of the items. I would like to retrieve the value of some publish field on the new item.

I added the ‘published_file_fields’ to this app config :
  hook_scene_operations: "{config}/tk-multi-breakdown2/"
  published_file_fields: ["sg_audio_frame_start", "name", "code"]

But I don’t see how to retrieve this info in the scene operations hook. I printed the contents of the “item” dict. It has the usual things, like :

{'node_name': 'AudioRead1', 'node_type': 'AudioRead', 'path': 'some path', 'extra_data': {'old_path': 'some old path'}}

I was expecting to get the values of the publish fields in that dict

How should I proceed to retrieve that information inside this hook ?