When browsing on my hard disk I always see the current folder as the first entry in the result list. Furthermore it's written in lower capital letters, even if the original name has upper capital letters (all the other entries are capitalized correctly).
In my opinion there should be an option to remove the first entry. But on the other hand you could also add a ".." entry (for the sake of completeness, which will navigate one level up).
When pressing "left" in file browsing mode while the focus is in the list, the level above is shown but the focus is completely away! Neither in the result list nor in the input field.