PyTorch: Model saved using torch.save does not show architecture

[JimXu1989]

• Netron app and version: 7.3.8
• OS and browser version: Ubuntu 22.04

Steps to Reproduce:

1. download a yolov8.pt model https://github.com/ultralytics/ultralytics
2. use netron to check it

you can find the model here: model https://github.com/ultralytics/ultralytics
netron does not show any branch

[lutzroeder]

@JimXu1989 the model file contains only weights and the module hierarchy, not the architecture graph.

[lutzroeder]

Duplicate of #720