Comment 6 for bug 784520

Ignore the part in my comment #5 about it happening after switching workspaces.

I'm able to reproduce it, although it doesn't always happen:
1. In Firefox, go to launchpad.net (or any other page with a normal textbox).
2. In the search box on the page, double-click the search box a couple of times (you'll see that the Unity launcher keeps moving in and out).
3. Sometimes Unity launcher doesn't hide when it shows from the action in step 2.