InvalidArgumentException on uploading file starting with umlauts
If you upload a file starting with an umlaut, e.g.
to a TYPO3 instance using
UTF8filesystem = true this leads to an error although the file was uploaded
and an exception on accessing the folder the file was uploaded to
This seems to be the case due to TYPO3 stripping the leading umlauts when processing the file for FAL but keeping them in the uploaded file stored in the folder.