Prompt outputs failed validation: CheckpointLoaderSimple: - Value not in list: ckpt_name: 'v1-5-pruned-emaonly-fp16.safetensors' not in []

### Custom Node Testing

- [x] I have tried disabling custom nodes and the issue persists (see [how to disable custom nodes](https://docs.comfy.org/troubleshooting/custom-node-issues#step-1%3A-test-with-all-custom-nodes-disabled) if you need help)

### Expected Behavior

Prompt outputs failed validation:
CheckpointLoaderSimple:
- Value not in list: ckpt_name: 'v1-5-pruned-emaonly-fp16.safetensors' not in []

### Actual Behavior

Prompt outputs failed validation:
CheckpointLoaderSimple:
- Value not in list: ckpt_name: 'v1-5-pruned-emaonly-fp16.safetensors' not in []

### Steps to Reproduce

Prompt outputs failed validation:
CheckpointLoaderSimple:
- Value not in list: ckpt_name: 'v1-5-pruned-emaonly-fp16.safetensors' not in []

### Debug Logs

```powershell
Prompt outputs failed validation:
CheckpointLoaderSimple:
- Value not in list: ckpt_name: 'v1-5-pruned-emaonly-fp16.safetensors' not in []
```

### Other

_No response_