Can't skip waiting for Wikipedia search results

When using the wikipedia command I type for example "firefox" and hit enter to search for it, but I have to wait for Ubiquity to search Wikipedia for suitable matches before I can hit enter to go to the site. Hitting enter before any search results are presented just closes the Ubiquity window without opening the Wikipedia page.

In the previous versions I just hit enter as soon as I had finished typing and I got directly to the Wikipedia site in the browser, which, in my opinion is better if you know what you are looking for.

I know it's only a matter of one or two seconds, but speed is what Ubiquity is all about, right?
Is there a reason of why it was changed, or is it a bug?
I'm using 0.5.1, but in at least 0.1.9 it seems to work like before.

thanks