fix in download torrents

pytorrent/services/rtorrent/files.py

@@ -706,16 +706,16 @@ def export_torrent_file(profile: dict, torrent_hash: str) -> dict:
     c = client_for(profile)
     name = str(c.call("d.name", torrent_hash) or torrent_hash).strip() or torrent_hash
     filename = f"{name}.torrent" if not name.lower().endswith(".torrent") else name
+    source = _torrent_source_file(c, torrent_hash)
+    if source:
+        # Note: Stream the existing .torrent source directly instead of copying it to a temporary staged file first.
+        return {"path": source, "download_name": filename, "local": False}
     raw = _torrent_raw_from_method(c, torrent_hash)
     if raw:
         target = LocalPath(download_tmp_dir()) / f"pytorrent-download-{uuid.uuid4().hex}.torrent"
         target.write_bytes(raw)
         return {"path": str(target), "download_name": filename, "local": True}
-    source = _torrent_source_file(c, torrent_hash)
-    if not source:
     raise RuntimeError("Cannot find torrent source file in rTorrent")
-    staged = _remote_stage_path(c, source, ".torrent")
-    return {"path": staged, "download_name": filename, "local": False}
 
 
 def set_file_priorities(profile: dict, torrent_hash: str, files: list[dict]) -> dict: