Badfiles: 'utf-8' codec can't decode byte on import

[Morikko]

Problem

Importing with the following config a file where the path contains unicode characters:

badfiles:
    check_on_import: yes

$> beet imp -m 'A unicode Ǝ string ñ'

Led to this problem:

Traceback (most recent call last):
  File ".local/bin/beet", line 8, in <module>
    sys.exit(main())
  File ".local/share/pipx/venvs/beets/lib/python3.10/site-packages/beets/ui/__init__.py", line 1865, in main
    _raw_main(args)
  File ".local/share/pipx/venvs/beets/lib/python3.10/site-packages/beets/ui/__init__.py", line 1852, in _raw_main
    subcommand.func(lib, suboptions, subargs)
  File ".local/share/pipx/venvs/beets/lib/python3.10/site-packages/beets/ui/commands.py", line 1395, in import_func
    import_files(lib, paths, query)
  File ".local/share/pipx/venvs/beets/lib/python3.10/site-packages/beets/ui/commands.py", line 1326, in import_files
    session.run()
  File ".local/share/pipx/venvs/beets/lib/python3.10/site-packages/beets/importer.py", line 360, in run
    pl.run_parallel(QUEUE_SIZE)
  File ".local/share/pipx/venvs/beets/lib/python3.10/site-packages/beets/util/pipeline.py", line 447, in run_parallel
    raise exc_info[1].with_traceback(exc_info[2])
  File ".local/share/pipx/venvs/beets/lib/python3.10/site-packages/beets/util/pipeline.py", line 312, in run
    out = self.coro.send(msg)
  File ".local/share/pipx/venvs/beets/lib/python3.10/site-packages/beets/util/pipeline.py", line 195, in coro
    func(*(args + (task,)))
  File ".local/share/pipx/venvs/beets/lib/python3.10/site-packages/beets/importer.py", line 1490, in lookup_candidates
    plugins.send("import_task_start", session=session, task=task)
  File ".local/share/pipx/venvs/beets/lib/python3.10/site-packages/beets/plugins.py", line 507, in send
    result = handler(**arguments)
  File ".local/share/pipx/venvs/beets/lib/python3.10/site-packages/beets/plugins.py", line 143, in wrapper
    return func(*args, **kwargs)
  File ".local/share/pipx/venvs/beets/lib/python3.10/site-packages/beetsplug/badfiles.py", line 175, in on_import_task_start
    error_lines = self.check_item(item)
  File ".local/share/pipx/venvs/beets/lib/python3.10/site-packages/beetsplug/badfiles.py", line 128, in check_item
    path = item.path.decode(sys.getfilesystemencoding())
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xd1 in position 86: invalid continuation byte

Setup

• OS: Ubuntu 24.04
• Python version: 3.10
• beets version: 2.0.0

It seems a similar issue than: #2168