Added a default case in load checkpoint

Author: Danamir

ai_diffusion/workflow.py

@@ -105,6 +105,10 @@ def load_checkpoint_with_lora(w: ComfyWorkflow, checkpoint: CheckpointInput, mod
                 model = w.nunchaku_load_flux_diffusion_model(model_info.filename, cache_threshold=cache)
             elif model_info.arch in (Arch.qwen, Arch.qwen_e):
                 model = w.nunchaku_load_qwen_diffusion_model(model_info.filename, cpu_offload="enable", num_blocks_on_gpu=16, use_pin_memory="disable")
+            else:
+                raise RuntimeError(
+                    f"Style checkpoint {checkpoint.checkpoint} has an unsupported quantized format {model_info.format.name}"
+                )
         case _:
             raise RuntimeError(
                 f"Style checkpoint {checkpoint.checkpoint} has an unsupported format {model_info.format.name}"