I'm not sure what configuration you have, but this does not send requests to Siri a-la the "cmd-cmd <type to siri>" flow.
It does as long as you've typed something that doesn't match an app. "Safari" and enter will open Safari. "What is safari" and enter will ask Siri the question and show the answer.
alt Hacker News
It does as long as you've typed something that doesn't match an app. "Safari" and enter will open Safari. "What is safari" and enter will ask Siri the question and show the answer.