[TASK] Show default template content in be module

Classes/Controller/MailController.php

@@ -171,8 +171,8 @@ class MailController extends ActionController {
 				}
 				$templateFromFile->setSubject($subject);
 				$subject = $registerArray[$parameters['selectedExtension']][$parameters['selectedTemplate']]['subject'];
-				if (file_exists($defaultTemplateFile)) {
-					$templateFromFile->setContent(file_get_contents($defaultTemplateFile));
+				if ($registerArray[$parameters['selectedExtension']][$parameters['selectedTemplate']]['templateContent']) {
+					$templateFromFile->setContent($registerArray[$parameters['selectedExtension']][$parameters['selectedTemplate']]['templateContent']);
 				} else {
 					if (file_exists($fallbackTemplateFile)) {
 						$templateFromFile->setContent(file_get_contents($fallbackTemplateFile));