Searching for classes also displays files in the result

Hi,

I'm currently evaluating PyCharm and by and large it's working great so far.

I was wondering about a little thing in the search box, when I search for classes (Navigate > Class...) and start typing, it's also displaying files in the result list. Is that intentional? (after all, there is a separate search category for files)
If so, is there a way to really restrict the search to classes?