reupload_pack seems to be broken if media reupload is skipped

[cthu1hoo]

Found 35 already reuploaded stickers
Skipped reuploading 643524467607209917
Traceback (most recent call last):
  File "/opt/element/stickerpicker/./venv/bin/sticker-import", line 33, in <module>
    sys.exit(load_entry_point('maunium-stickerpicker==0.1.0+dev.4c13a2c2', 'console_scripts', 'sticker-import')())
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/element/stickerpicker/venv/lib/python3.11/site-packages/sticker/stickerimport.py", line 165, in cmd
    asyncio.run(main(parser.parse_args()))
  File "/usr/lib/python3.11/asyncio/runners.py", line 190, in run
    return runner.run(main)
           ^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/asyncio/runners.py", line 118, in run
    return self._loop.run_until_complete(task)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/asyncio/base_events.py", line 653, in run_until_complete
    return future.result()
           ^^^^^^^^^^^^^^^
  File "/opt/element/stickerpicker/venv/lib/python3.11/site-packages/sticker/stickerimport.py", line 157, in main
    await reupload_pack(client, pack, args.output_dir)
  File "/opt/element/stickerpicker/venv/lib/python3.11/site-packages/sticker/stickerimport.py", line 89, in reupload_pack
    stickers_data[reuploaded_documents[document.id]["url"]] = data
                                                              ^^^^
UnboundLocalError: cannot access local variable 'data' where it is not associated with a value

Looking at the source:

    stickers_data: Dict[str, bytes] = {}
    reuploaded_documents: Dict[int, matrix.StickerInfo] = {}
    for document in pack.documents:
        try:
            reuploaded_documents[document.id] = already_uploaded[document.id]
            print(f"Skipped reuploading {document.id}")
        except KeyError:
            reuploaded_documents[document.id], data = await reupload_document(client, document)
        # Always ensure the body and telegram metadata is correct
        add_meta(document, reuploaded_documents[document.id], pack)
        stickers_data[reuploaded_documents[document.id]["url"]] = data

So, if uploading is skipped, it looks like data will never be defined.