[BUGFIX] Always clear extbase's cache after building proxy classes

The datamap cache must be restored as soon as proxy classes are built because otherwise it can fail because the information is not available how to map stuff

Author: georgringer

Classes/Utility/ClassCacheManager.php

@@ -98,6 +98,7 @@ public function reBuild()
                 $cacheEntryIdentifier = 'tx_news_' . strtolower(str_replace('/', '_', $key));
                 try {
                     $this->classCache->set($cacheEntryIdentifier, $code);
+                    GeneralUtility::makeInstance(CacheManager::class)->getCache('extbase')->flush();
                 } catch (\Exception $e) {
                     throw new \Exception($e->getMessage(), 2006286512);
                 }