- Format table: a missing acodec was treated as "has audio", skipping
the +bestaudio merge and producing silent videos for extractors that
omit the field.
- Progress bar: separate video/audio stream downloads each reported
0-100%, making the bar jump backwards; per-phase scaling now maps the
two streams onto 0-50/50-100.
- Custom commands: parse with shlex (quoted arguments with spaces were
shredded by str.split), keep POSIX mode off on Windows so backslash
paths survive, hide the console window like every other call site,
close the stdout pipe, and support cancellation of a running command.
- Settings dialog: _("settings", "error_saving", ...) passed two
positional args to the i18n helper, raising TypeError inside the
except handler instead of showing the intended error dialog.
- ffmpeg on Windows: Path(os.getenv("LOCALAPPDATA")) crashed with
TypeError when the variable is unset; fall back to the standard
AppData/Local location.
- Version cache: cached path (str) was compared against a Path, so the
cache never hit and every version query spawned a subprocess.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Jaroslav Beneš
4cc48ae98f