[BUGFIX] Avoid using native filemtime for calculation of paths

When generating the preview images in the FileList,
a change was added to use filemtime for "absolute path",
whereas paths such as "/_assets/..." are technically
absolute, but are already absolute web paths generated
by "getPublicUrl()" of FAL.

For this reason, cache busting is added manually via
the FAL API.

Resolves: #106368
Related: #101968
Related: #82855
Releases: main, 13.4
Change-Id: If8f76c195f8c5c395b038b0fc4fdeb419aa59033
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/89052
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Benni Mack <benni@typo3.org>
Tested-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Andreas Kienast <akienast@scripting-base.de>
Reviewed-by: Benni Mack <benni@typo3.org>

Author: bmack

typo3/sysext/filelist/Classes/FileList.php

@@ -704,8 +704,11 @@ protected function renderThumbnail(ResourceView $resourceView): string
             return '';
         }
 
-        if (PathUtility::isAbsolutePath($thumbnailUrl)) {
-            $thumbnailUrl .= '?' . filemtime($processedFile->getForLocalProcessing(false));
+        // We cannot use GeneralUtility::createVersionNumberedFilename() here, because we do not
+        // know if the file is on a Local storage or if the publicURL has been generated by a
+        // custom Event Listener
+        if (!str_contains($thumbnailUrl, '?') && !PathUtility::hasProtocolAndScheme($thumbnailUrl)) {
+            $thumbnailUrl .= '?' . $processedFile->getModificationTime();
         }
 
         return '<br><img src="' . htmlspecialchars($thumbnailUrl) . '" ' .