[issue44637] Quoting issue on header Reply-To and other address headers

[Julien Castiaux]

Julien Castiaux <julien.castiaux at gmail.com> added the comment:

Hello there,

There is a pull-request on github, had to modify `_refold_parse_tree` but I could keep the diff quite small. It is properly tested and it is waiting a review :)

We have a patch at work so it is *absolutely not* urgent, feel free to review it *anytime*. Since we are using the Ubuntu LTS version of python, we might be interested by a backport till 3.7, quite honestly I'm happy it was flag as a security issue :D

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<https://bugs.python.org/issue44637>
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