The fuzzy @-file completer shells out to 'rg --files' via subprocess.run
with text=True. On Windows, Python 3.13 decodes stdout using the system
ANSI codepage (cp1252), so any filename containing bytes like 0x81/0x8f
crashes the background reader thread with UnicodeDecodeError. The
exception is swallowed inside subprocess, leaving proc.stdout=None, and
the next line ('proc.stdout.strip()') blows up with:
AttributeError: 'NoneType' object has no attribute 'strip'
This takes down the prompt_toolkit event loop and forces 'Press ENTER to
continue' until the user clears the @-query.
Fix:
- Pass encoding='utf-8', errors='replace' so rg's UTF-8 output is decoded
consistently across platforms and unmappable bytes don't crash.
- Guard 'proc.stdout' with a None check before .strip(), so a future
reader-thread failure degrades gracefully instead of breaking input.
JamesX88
a33ec10874