[BUGFIX] Check opendir result in fixPermissions
Checks opendir result if it is a resource before passing it to readdir. Resolves: #47981 Releases: master, 7.6 Change-Id: I45ca844c7ab353a28dc7002ec206bcb054b01c96 Reviewed-on: https://review.typo3.org/49407 Reviewed-by:Christian Kuhn <lolli@schwarzbu.ch> Tested-by:
Christian Kuhn <lolli@schwarzbu.ch>
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