[TYPO3-core] RFC #8040: Bug: Wrong check on creating folders in filelist makes them unaccessible

[Moreno Feltscher]

>  Patch looks ok for me. I cannot test it because I have no Windows installation of TYPO3. So TYPO3 by looking.
>
>  Do we have two +1s already?

No, we need one more. Thanks Dmitry.