Hello David, Victor,

Thank you for the triage, it reminds me about this issue. David, the 
solution I tried last month was wrong, it was breaking (for good 
reasons) tons of unittests. It seems to me that there is indeed no other 
solution than to bloat the re-folding function a bit more and to fix the 
dbquotes there as your last email suggested.

I agree with you that the code will be even messier, honestly I spent 
quite some time understanding the _refold_parse_tree function and I 
don't feel like patching it.

Regards,

On 11.08.21 14:57, STINNER Victor wrote:
> STINNER Victor <vstinner@python.org> added the comment:
>
> I change the issue type to security. The bug can be abused to send emails to the wrong email address.
>
> ----------
> nosy: +vstinner
> type: behavior -> security
>
> _______________________________________
> Python tracker <report@bugs.python.org>
> <https://bugs.python.org/issue44637>
> _______________________________________