[TYPO3] backend, delete a file with 2 dots

[Ulf Stephan]

Hi all,
I've got a little problem and don't know if it's a bug or a feature ;-)
I have uploaded a file with two dots inside (test..test.pdf). This
works, but as I tried to delete it the Klickmenue does not appear.
The only way to delete it is directly on the server.
It is here on Typo3 4.0 and 3.8.1 installation. Has anybody the same
behaviour or idepands it on my installation/ configuration?

Greetings Ulf