<p>May I add an observation that is not only true for this ticket but for issue commenting in github general: this ticket was opened as a reminder that we need a test for a given corner case to either confirm a problem or close the issue. Plain and simple.</p>
<p>Helpful things to contribute: a PR with the test case.</p>
<p>Not so helpful: comments with idle speculation, which uses up the maintainer's time as they need to read, process and answer the comment.</p>

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