Fix training push_to_hub (unconditional image generation): models were not saved before pushing to hub (huggingface#868)

Fix: models were not saved before pushing to hub.

Author: pcuenca

examples/unconditional_image_generation/train_unconditional.py

@@ -184,10 +184,9 @@ def transforms(examples):
 
             if epoch % args.save_model_epochs == 0 or epoch == args.num_epochs - 1:
                 # save the model
+                pipeline.save_pretrained(args.output_dir)
                 if args.push_to_hub:
                     repo.push_to_hub(commit_message=f"Epoch {epoch}", blocking=False)
-                else:
-                    pipeline.save_pretrained(args.output_dir)
         accelerator.wait_for_everyone()
 
     accelerator.end_training()