Formatting with "xml.format.emptyElements": "expand" chokes on malformed XML

[fbricon]

Set "xml.format.emptyElements": "expand" in the preferences, then

<?xml version="1.0" encoding="UTF-8" ?>
<a>
    <a>
        <a/></a>
    </a>
</a>

after formatting, becomes:

<?xml version="1.0" encoding="UTF-8" ?>
<a>
    <a>
        <a></a>
    </a>
</a></a>

[angelozerr]

@fbricon I don't see a real bug here, what do you want to have as format result?

[angelozerr]

I think experimental formatter should fix this issue.

@JessicaJHee could you check that and write a test by using the usecase of this issue please.

[angelozerr]

This issue is fixed with experimental formatter. @JessicaJHee wrote a test for this usecase.