disable offloading for backend=original

modules/shared.py

@@ -1062,7 +1062,7 @@ opts.data['uni_pc_order'] = opts.schedulers_solver_order # compatibility
 log.info(f'Engine: backend={backend} compute={devices.backend} device={devices.get_optimal_device_name()} attention="{opts.cross_attention_optimization}" mode={devices.inference_context.__name__}')
 if not native:
     log.warning('Backend=original is in maintainance-only mode')
-    opts.diffusers_offload_mode = 'none'
+    opts.data['diffusers_offload_mode'] = 'none'
 
 try:
     log.info(f'Device: {print_dict(devices.get_gpu_info())}')