I am currently participated in testing the new navigation. I just saw Sklivvz ♦ post Improving our navigation, the next iteration and thought of giving a try. I love the new expanded layout view and the tab pinning. This is a great improvement. Excellent job!!
Upon switching back n forth between the Show and Hide excerpts tabs, I clicked "Hide excerpts" twice by accident. The posts results shown below were fine, nothing changed. The only change I noticed was the refresh of Hot Network Questions on the right side panel whereas the Frequently Asked above it remained unchanged.
Here is the screenshot for Hide excerpts:
The same behavior (as for the Hot Network Questions goes) for the "Show excerpts" tab too. I wonder what causes the refresh to Hot Network Questions? Does this belongs to status-bydesign category?