`json.dump()` with `indent` and `skipkeys` can be formatted incorrectly

[nineteendo]

Bug report

Bug description:

>>> import json
>>> print(json.dumps({b"": 0}, indent=4, skipkeys=True))
{
    
}

Related: #123183

CPython versions tested on:

3.13

Operating systems tested on:

Windows

Linked PRs

• gh-131884: Fix incorrect formatting in json.dumps() when using indent and skipkeys=True #132200
• [3.14] gh-131884: Fix incorrect formatting in json.dumps() when using indent and skipkeys=True (GH-132200) #135060
• [3.13] gh-131884: Fix incorrect formatting in json.dumps() when using indent and skipkeys=True (GH-132200) #135061