First, let me say this is great the way this new feature works with the drop down box and search.

I was selecting different defaults to test it out it functions perfectly. However, when I was typing in esv and got this window, which is fine

But instead of selecting the search result, I hit the backspace and then got this weird result

I have not been able to repeat it, but I thought I should report it anyway. Overall though, good implementation of this feature. :-)