some_url_path.open_bytes() fails with AttributeError: RepeatFile does not have readable

[niv]

Trying to open a URL with open_bytes() fails with "AttributeError: RepeatFile does not have readable"

This does not seem to happen on open_text().

Steps to reproduce

• Custom loader code that calls open_bytes() on a URI source.

Expected result

• Gives me a file handle in binary mode.

Actual result with screenshot

Configuration

• Does this issue reproduce without any plugins or configuration (using the -N CLI flag)?

N/A

• Does this issue reproduce with either the latest release, or with the develop branch?

Yes, happens on 3.2 and top of tree.

Additional context

• What platform and version are you using (Linux, MacOS, Windows)?

MacOS.

• Which version of Python?

3.10.16

• Which terminal are you using (for display and input issues)?

iterm2

Code of offending loader, condensed to minimal test case:

from visidata import (
    TableSheet,
    VisiData,

)


@VisiData.api
def open_nwsyncmanifest(_vd, p):
    return NWSyncManifestSheet(p.name, source=p)


@VisiData.api
def guess_nwsyncmanifest(_vd, p):
    if p.open_bytes().read(8).startswith(b"NSYM\x03\x00\x00\x00"):
        return {"filetype": "nwsyncmanifest"}
    return None

@VisiData.api
def guessurl_nwsyncmanifest(_vd, _p, response):
    if response.read(8).startswith(b"NSYM\x03\x00\x00\x00"):
        return {"filetype": "nwsyncmanifest"}
    return None

class NWSyncManifestSheet(TableSheet):
    def iterload(self):
        with self.source.open_bytes() as f:  # !BANG!
            pass

To repro: visidata http://anphillia.pw/nwsync/manifests/b6efd63f3429def9246543ca772581f5555aa721