`pathlib.(r)glob` cannot correctly search files with a ampersand(`&`) between `[` and `]`

[Mizoreeeee]

Bug report

Bug description:

only one file in the directory

$ tree .
.
└── [amper&sand]amper&sand

0 directories, 1 file

>>> from pathlib import Path
>>> a = Path('.')
>>> tuple(a.glob('[amper&sand]*'))
()
>>> tuple(a.glob('[amper&sand*'))
(WindowsPath('[amper&sand]amper&sand'),)
>>>

CPython versions tested on:

3.11, 3.10

Operating systems tested on:

Windows, macOS, Linux

[gvanrossum]

Not a bug. The argument is a glob pattern. Quote the first [ using \[ .