[PROBLEM] disable video thumbnails

[idontkn0w123]

Software
XBian version: XBian 1.0 Beta 1.1
XBMC version: system default
Overclock settings: system default

Hardware
Power supply rating: 5V 1A
RPi model (model A/B 256mb/512mb): Model B
SD card size and make/type: Transcend Extreme-Speed SDHC 16GB Class 10
Network (wireless or LAN): Lan
Connected devices (TV, USB, network storage, etc.): Samsung 40" LCD ..

Problem description:
in settings -> video I disabled "Extract thumbnails and video information", but pictures are still loaded

How to reproduce:

• fresh xbian install on sdcard
• movie folders contain no .nfo or .jpg, just video!
• disable "Extract thumbnails and video information"
• add new library ->it should not add any pictures
• it adds thumbnails
  

Edit: Just tested on xmbc 12.0-RC3 on linux it is also the same.