fix dataset dummy error

sync_storage.py

@@ -224,10 +224,10 @@ This repository is automatically managed by the Open WebUI sync system.
             # Try to download the latest data archive
             try:
                 metadata = self._get_metadata()
+                current_files = list_repo_files(self.repo_id, repo_type="dataset", token=self.token)
 
                 logger.info(f"Found {len(current_files)} files to preserve.")
                 archive_filenames = [i["filename"] for i in metadata["archives"]]
-                current_files = list_repo_files(self.repo_id, repo_type="dataset", token=self.token)
                 logger.info(f"Archive filenames: {archive_filenames}")
                 logger.info(f"Current filenames: {current_files}")
                 latest_link = self.latest_link