[RSS Feed/News] Error when open_basedir is configured and the parent of tempDataPath is not included

[XenForo]

Code:

RuntimeException: SplFileInfo::isFile(): open_basedir restriction in effect. File(/<tempdir>/..) is not within the allowed path(s)

#0 src/XF/Util/File.php(146): SplFileInfo->isFile()

Changing
PHP:

if (!$file->isFile() || $file->getFilename() == 'index.html')

to
PHP:

if ($file->isDot() || !$file->isFile() || $file->getFilename() === 'index.html')

seems to fix this.
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