Akeeba Admin Tools 3.5.0 is including FoF rev20042FD-1426285324 2015-03-14. It has this error:
https://github.com/akeeba/fof/pull/482
I am patching sites adding the dot.
Please, let me know with a new release of FoF or Akeeba Admin Tools are available.
Regards,
Anibal