It doesn't work, because in previous releases, it will get keyboard focus (steal focus?) when the pop-up tooltip appears. In 6.6, it will not get keyboard focus just after shown, so focus out actions (to close the pop-up tooltip window) will not executed if you clicked on the editor. If you first click on the pop-up tooltip (to give it focus), then click on the editor, it will disappear.

In revision#83652, the pop-up tooltip will be closed just after user pointer leave the pop-up tooltip window area. Personally, I think this is better than clicking on the editor to make it go away. Close the bug report now.

If you don't like the solution, please reopen the bug.

Thanks for your report.