diffusers convert_from_ckpt() ACE PoC
download_from_original_stable_diffusion_ckpt() in
diffusers/pipelines/stable_diffusion/convert_from_ckpt.py calls
torch.load() WITHOUT weights_only parameter.
On PyTorch <2.6: defaults to weights_only=False = ACE
On PyTorch 2.6+: defaults to True but error message guides users to set False
Also affects download_controlnet_from_original_ckpt() with same pattern.