Fix file device cached child issue

When opening the previously-visited directory in the file device, the
directory data is read from a cache, preventing the need to have it
regenerated from scratch. The directory data includes the selected
child, which meant that instead of child 0 being selected as per the
specification, the previously-selected child was selected instead.

To fix this, the child is deselected as the directory data is cached.

0 files changed, 0 insertions, 0 deletions