[BUGFIX] Template dropdown doesn't refresh template title after save

Reloads the template menu after the template title has been changed.

Resolves: #51805
Releases: 6.2, 6.1
Change-Id: I5d987a3ffc6a11dfa1ebe54480c9c3b69ccc1959
Reviewed-on: https://review.typo3.org/26766
Reviewed-by: Markus Klein
Tested-by: Markus Klein
Reviewed-by: Stefan Neufeind
Tested-by: Stefan Neufeind

typo3/sysext/tstemplate/Classes/Controller/TypoScriptTemplateInformationModuleFunctionController.php

@@ -274,6 +274,8 @@ class TypoScriptTemplateInformationModuleFunctionController extends \TYPO3\CMS\B
 					$this->tce_processed = TRUE;
 					// re-read the template ...
 					$this->initialize_editor($this->pObj->id, $template_uid);
+					// reload template menu
+					$manyTemplatesMenu = $this->pObj->templateMenu();
 				}
 				// If files has been edited:
 				if (is_array($edit)) {