Fluidmail: information about replaced recipients not rendert

[akiessling]

Relates to #9
While the mail redirection seems to work properly, the information about the replaced recipients is not added to the mailtext.

It looks like the body is rendered multiple times and thus overwrites the added information
I added some debug information to the generateTemplateBody method in FluidMail (in T3 11.5)

    protected function generateTemplatedBody(string $forceFormat = ''): void
    {
        echo "<pre>";
        \debug_print_backtrace(0, 8);
        echo "</pre>";

This results in 3 renderings in my local ddev setup with smtp mailer / mailhog, but only the first one is from the xclassed mailer

#0 /var/www/html/src/public/typo3/sysext/core/Classes/Mail/FluidEmail.php(137): TYPO3\CMS\Core\Mail\FluidEmail->generateTemplatedBody()
#1 /var/www/html/src/vendor/symfony/mailer/SentMessage.php(33): TYPO3\CMS\Core\Mail\FluidEmail->ensureValidity()
#2 /var/www/html/src/vendor/symfony/mailer/Transport/AbstractTransport.php(70): Symfony\Component\Mailer\SentMessage->__construct(Object(TYPO3\CMS\Core\Mail\FluidEmail), Object(Symfony\Component\Mailer\DelayedEnvelope))
#3 /var/www/html/src/vendor/symfony/mailer/Transport/Smtp/SmtpTransport.php(136): Symfony\Component\Mailer\Transport\AbstractTransport->send(Object(TYPO3\CMS\Core\Mail\FluidEmail), Object(Symfony\Component\Mailer\DelayedEnvelope))
#4 /var/www/html/src/public/typo3/sysext/core/Classes/Mail/Mailer.php(125): Symfony\Component\Mailer\Transport\Smtp\SmtpTransport->send(Object(TYPO3\CMS\Core\Mail\FluidEmail), NULL)
#5 /var/www/html/src/public/typo3conf/ext/ameos_mailredirect/Classes/Xclass/Mail/Mailer.php(68): TYPO3\CMS\Core\Mail\Mailer->send(Object(TYPO3\CMS\Core\Mail\FluidEmail), NULL)
#6 /var/www/html/src/public/typo3/sysext/form/Classes/Domain/Finishers/EmailFinisher.php(194): Ameos\AmeosMailredirect\Xclass\Mail\Mailer->send(Object(TYPO3\CMS\Core\Mail\FluidEmail))
#7 /var/www/html/src/public/typo3/sysext/form/Classes/Domain/Finishers/AbstractFinisher.php(156): TYPO3\CMS\Form\Domain\Finishers\EmailFinisher->executeInternal()

#0 /var/www/html/src/public/typo3/sysext/core/Classes/Mail/FluidEmail.php(143): TYPO3\CMS\Core\Mail\FluidEmail->generateTemplatedBody()
#1 /var/www/html/src/vendor/symfony/mime/Message.php(117): TYPO3\CMS\Core\Mail\FluidEmail->getBody()
#2 /var/www/html/src/vendor/symfony/mime/RawMessage.php(52): Symfony\Component\Mime\Message->toIterable()
#3 /var/www/html/src/vendor/symfony/mailer/Transport/Smtp/Stream/AbstractStream.php(112): Symfony\Component\Mime\RawMessage->toIterable()
#4 /var/www/html/src/vendor/symfony/mailer/Transport/Smtp/SmtpTransport.php(207): Symfony\Component\Mailer\Transport\Smtp\Stream\AbstractStream::replace('\r\n.', '\r\n..', Object(Generator))
#5 /var/www/html/src/vendor/symfony/mailer/Transport/AbstractTransport.php(71): Symfony\Component\Mailer\Transport\Smtp\SmtpTransport->doSend(Object(Symfony\Component\Mailer\SentMessage))
#6 /var/www/html/src/vendor/symfony/mailer/Transport/Smtp/SmtpTransport.php(136): Symfony\Component\Mailer\Transport\AbstractTransport->send(Object(Symfony\Component\Mailer\SentMessage), Object(Symfony\Component\Mailer\DelayedEnvelope))
#7 /var/www/html/src/public/typo3/sysext/core/Classes/Mail/Mailer.php(125): Symfony\Component\Mailer\Transport\Smtp\SmtpTransport->send(Object(TYPO3\CMS\Core\Mail\FluidEmail), NULL)

#0 /var/www/html/src/public/typo3/sysext/core/Classes/Mail/FluidEmail.php(137): TYPO3\CMS\Core\Mail\FluidEmail->generateTemplatedBody()
#1 /var/www/html/src/vendor/symfony/mime/Email.php(464): TYPO3\CMS\Core\Mail\FluidEmail->ensureValidity()
#2 /var/www/html/src/vendor/symfony/mime/Email.php(426): Symfony\Component\Mime\Email->generateBody()
#3 /var/www/html/src/public/typo3/sysext/core/Classes/Mail/FluidEmail.php(145): Symfony\Component\Mime\Email->getBody()
#4 /var/www/html/src/vendor/symfony/mime/Message.php(117): TYPO3\CMS\Core\Mail\FluidEmail->getBody()
#5 /var/www/html/src/vendor/symfony/mime/RawMessage.php(52): Symfony\Component\Mime\Message->toIterable()
#6 /var/www/html/src/vendor/symfony/mailer/Transport/Smtp/Stream/AbstractStream.php(112): Symfony\Component\Mime\RawMessage->toIterable()
#7 /var/www/html/src/vendor/symfony/mailer/Transport/Smtp/SmtpTransport.php(207): Symfony\Component\Mailer\Transport\Smtp\Stream\AbstractStream::replace('\r\n.', '\r\n..', Object(Generator))

Seems like Xclassing MailMessage and FluidMail is still required?