With the window in 2- or 3-column mode, and no updates in progress: open a feed, navigate to an article and then click the same feed again in the feed list. The feed is opened with no article selected ("select an item to view it here"), which is different from the behavior when opening the feed initially.
[Update: it seems like this only happens when they unread filter is turned off. When the unread filter is on it behaves correctly]
With the window in 2- or 3-column mode, and no updates in progress: open a feed, navigate to an article and then click the same feed again in the feed list. The feed is opened with no article selected ("select an item to view it here"), which is different from the behavior when opening the feed initially.
[Update: it seems like this only happens when they unread filter is turned off. When the unread filter is on it behaves correctly]