[BUGFIX] Manually trigger the save to the plain textarea if a save button was clicked

Classes/Editors/RteBase.php

@@ -132,7 +132,19 @@ class RteBase extends AbstractRte {
 			window.RTE["editor' . $editorId . '"] = {};
 			window.RTE["editor' . $editorId . '"].rteConfiguration = "' . $rteConfiguration . '";
 			window.RTE["editor' . $editorId . '"].typo3ContentLanguage = "' . $language . '";
-			window.RTE["editor' . $editorId . '"].sys_language_content = parseInt(' . $languageId . ');'
+			window.RTE["editor' . $editorId . '"].sys_language_content = parseInt(' . $languageId . ');
+
+			// manually trigger the save to the plain textarea if a save button was clicked
+			$$(".c-inputButton").each(
+				function(element) {
+					element.observe(
+						"click", function() {
+							tinyMCE.triggerSave();
+						}
+					);
+				}
+			);
+		'
 		);
 
 		return $code;