diff --git a/lib/private/Share20/Manager.php b/lib/private/Share20/Manager.php
index fa714203352d5..45b3565fbcc4c 100644
--- a/lib/private/Share20/Manager.php
+++ b/lib/private/Share20/Manager.php
@@ -1072,8 +1072,10 @@ protected function promoteReshares(IShare $share): void {
 
 		foreach ($reshareRecords as $child) {
 			try {
+				/* Check if the share is still valid (means the resharer still has access to the file through another mean */
 				$this->generalCreateChecks($child);
 			} catch (GenericShareException $e) {
+				/* The check is invalid, promote it to a direct share from the sharer of parent share */
 				$this->logger->debug('Promote reshare because of exception '.$e->getMessage(), ['exception' => $e, 'fullId' => $child->getFullId()]);
 				try {
 					$child->setSharedBy($share->getSharedBy());