Can't view unread of a particular feed or folder of feeds

What version of the product are you using? On what operating system?

0.17.0 on Ubuntu 14.04

What steps will reproduce the problem?
1. Click on a feed which has both read and unread items in it. 
2. Click on 'Unread' in the Category panel.
3.

What is the expected output? What do you see instead?
List of unread news items should be displayed from the selected feed (or 
sub-feeds of the folder), but instead the folder or feed you selected is 
forgotten and all unread feeds of all feeds is shown.

Please provide any additional information below:
 - feed with errors: <feed_URL>

Please attach your feeds.db and quiterss.ini files
You can find paths to files by using main menu: "Help->About->Information"

Original issue reported on code.google.com by happycod...@gmail.com on 24 Oct 2014 at 1:14

Attachments:

feeds.db
QuiteRss.ini

barkinet / quite-rss

Can't view unread of a particular feed or folder of feeds #659