mercurial/thirdparty/cbor/__init__.py

windows: prevent bytes from being passed to registry APIs

There was a TortoiseHg bug report in this area[1], and from inspection, it looks
like passing `b""` as `valname` would fail to convert to unicode.  The
underlying API allows both `""` and `NULL` to return the default value for the
key.

[1] https://foss.heptapod.net/mercurial/tortoisehg/thg/-/issues/5803

from .cbor2 import (
    CBORDecodeError,
    CBORDecoder,
    CBOREncodeError,
    CBOREncoder,
    dump,
    dumps,
    load,
    loads,
)