Bug #87380
Updated by Wolfgang Klinger almost 6 years ago
\TYPO3\CMS\Core\Routing\Aspect\AspectFactory::enrich uses 'class_uses' to check for trait, but this does not work for inherited classes. So if someone extends e.g. the PersistedJoinMapper this leads to an exception because $this->siteLanguage is not set. A better solution would be to check if the property 'siteLanguage' exists in the object. class.