Re: Regression: git send-email fails with "Use of uninitialized value $address" + "unable to extract a valid address"

> On Tue, Oct 24, 2023 at 10:43:18PM +0200, Uwe Kleine-König wrote:
> 
> > I debugged a bit and if I do
> > 
> > 	mv .git/hooks/sendemail-validate .git/hooks/sendemail-validate.bak
> > 
> > git send-email --to 'Uwe Kleine-König <u.kleine-koenig@pengutronix.de>'
> > starts to work for me, too.
> > 
> > I'd guess the content of my sendemail-validate script doesn't matter
> > much, but for the record, it's:
> > 
> > 	#!/bin/sh
> > 	# installed by patatt install-hook
> > 	patatt sign --hook "${1}"
> > 
> > Does the problem reproduce on your end with a sendemail-validate script?
> 
> I can reproduce with:
> 
>   git init
>   echo foo >file && git add file && git commit -m foo
>   echo 'exit 0' >.git/hooks/sendemail-validate
>   chmod +x .git/hooks/sendemail-validate
>   git send-email --dry-run --to='pëff <peff@peff.net>' -1
> 
> Note that the bug will only trigger if Email::Valid is installed.

> I think this is the same issue being discussed elsewhere. The call to
> process_address_list() sanitizes it to use rfc2047 encoding, which is
> necessary for it to be syntactically valid.
> 
> So the patch to move the validation later in the process here:
> 
>   https://lore.kernel.org/git/ee56c4df-e030-45f9-86a9-94fb3540db60@amd.com/
> 
> fixes it.