Possible Bug in MailPostProcessor

[MediKathi]

Hello there,

while migration from Typo3 7.6 to 8.7 I found a "Bug" in the MailPostProcessor.php

on line 488:
$typoScript = $configurationManager->getConfiguration(\TYPO3\CMS\Extbase\Configuration\ConfigurationManagerInterface::CONFIGURATION_TYPE_FRAMEWORK);

this line does no return the needed array for the next foreach loops.

So I had to chance the mentioned line to
$typoScript = $configurationManager->getConfiguration(\TYPO3\CMS\Extbase\Configuration\ConfigurationManagerInterface::CONFIGURATION_TYPE_FULL_TYPOSCRIPT);

and adjust the paths in the method.