[BUGFIX] Reverting accidentally overwritten code

Classes/Service/ConfigurationService.php

@@ -184,7 +184,7 @@ class ConfigurationService extends AbstractService {
 			}
 
 			// global extensions
-			if ($this->extConfig['viewGlobalExt']) {
+			if ($this->extConfig['viewGlobalExt'] && is_dir(Typo3Lib::pathGlobalExt)) {
 				if (count(
 					$content = Functions::searchExtensions(
 						PATH_site . Typo3Lib::pathGlobalExt, $this->extConfig['viewStateExt'],
@@ -387,7 +387,7 @@ class ConfigurationService extends AbstractService {
 	 * @param boolean $forceDel set to true if you want delete default constants
 	 * @param array|NULL $editedLanguages
 	 * @throws Exception
-	 * @throws LFException
+	 * @throws LFException if file could not be written or some param criteria is not correct
 	 * @throws \TYPO3\CMS\Core\Cache\Exception\NoSuchCacheException
 	 * @return void
 	 */

Classes/Service/FileOverrideService.php

@@ -129,7 +129,7 @@ class FileOverrideService extends FileBaseXMLService {
 	 * Writes language override files.
 	 *
 	 * @param array|null $editedLanguages
-	 * @throws LFException
+	 * @throws LFException raised if a file cant be written
 	 * @throws \Exception
 	 * @return void
 	 */