Fix #19066 - Array offset error due to empty file versions array

Signed-off-by: Liam JACK <liamjack@users.noreply.github.com>

diff --git a/apps/files_versions/lib/Storage.php b/apps/files_versions/lib/Storage.php
index daf610dd1d7d4e624c73d48cdce2705d427b8cbe..8826224e5bd40d75e76b5c5a6455555b030c418a 100644 (file)
--- a/apps/files_versions/lib/Storage.php
+++ b/apps/files_versions/lib/Storage.php
@@ -647,6 +647,11 @@ class Storage {
                }
 
                $firstVersion = reset($versions);
+
+               if ($firstVersion === false) {
+                       return [$toDelete, $size];
+               }
+
                $firstKey = key($versions);
                $prevTimestamp = $firstVersion['version'];
                $nextVersion = $firstVersion['version'] - $step;