- Click on the "NewTask list" link when in a milestone
- Paste in any text content
- Highlight text using a right to left sweep of the mouse, ensuring mouse cursor moves outside the left side of the "New task list" pop-up (be sure to keep mouse button depressed at this point).
- Notice text is highlighted
- Release mouse button
- New task pup-up disappears
Does not seem to be limited to this pop-up, found while using Chrome (8.0.1025.162 m)