This PR fixes bug under is_safetensors_compatible function: when variant and safetensor file does not match, this function should return False. For example, in this model: stable-diffusion-v1-5/stable-diffusion-inpainting, there is file diffusion_pytorch_model.fp16.safetensors, but when variant is None, it should return False instead of True

@a-r-r-o-w @DN6 , pls help review, thx.

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Thanks @kaixuanliu! I think we would need to add the variant check when there are no component folders as well.

    if not components:
        return any(".safetensors" in filename for filename in filenames)

And I think the changes will break the current is_safetensors_compatible tests here

@DN6 , Hi, thanks for your advice. Have updated the code and test cases

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@DN6 Hi, I have checked all the CI tests offline. Can you help trigger the CI workflow again?