Index: html/typo3/sysext/install/Classes/Updates/SvgFilesSanitization.php
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/html/typo3/sysext/install/Classes/Updates/SvgFilesSanitization.php b/html/typo3/sysext/install/Classes/Updates/SvgFilesSanitization.php
--- a/html/typo3/sysext/install/Classes/Updates/SvgFilesSanitization.php	(date 1628097558484)
+++ b/html/typo3/sysext/install/Classes/Updates/SvgFilesSanitization.php	(date 1628097558484)
@@ -163,7 +163,7 @@
     {
         $filter = GeneralUtility::makeInstance(FileExtensionFilter::class);
         $filter->setAllowedFileExtensions(['svg', 'svgz']);
-        return $storage
+        $files = $storage
             ->setFileAndFolderNameFilters([[$filter, 'filterFileList']])
             ->getFilesInFolder(
                 $storage->getRootLevelFolder(),
@@ -172,6 +172,8 @@
                 true,
                 true
             );
+        $storage->resetFileAndFolderNameFiltersToDefault();
+        return $files;
     }
 
     protected function processSvgFiles(): bool