Yup. Clicking away from the autocomplete dropdown causes the page to reload and scroll to the top. Quite convenient. Let's see how Twitter achieved this incredible feat:
"Twitter.com has thousands of unit tests and nearly a hundred integration tests. " 
Does the timeline show? Check. Does the autocomplete dropdown show? Check. Everything is tested, ship it.
"...the redesign on the new Twitter web codebase took far fewer engineers only two weeks." 
Boy, does it show.