diffusers

67cf0445 - Fix to apply LoRAXFormersAttnProcessor instead of LoRAAttnProcessor when xFormers is enabled (#3556)

Fix to apply LoRAXFormersAttnProcessor instead of LoRAAttnProcessor when xFormers is enabled (#3556) * fix to use LoRAXFormersAttnProcessor * add test * using new LoraLoaderMixin.save_lora_weights * add test_lora_save_load_with_xformers