1. Start a GUI emacs with -q
2. load the attached t.el file
3. M-x test
4. look at the menu-bar and notice there is `Test' menu
5. mouse-click the first line and notice `Test' is gone
6. mouse-click the second line so that `Test' reappears
7. C-p to move to first line and notice `Test' doesn't disappear

The difference between 5 and 7 is puzzling. Is this a bug? How to make
the two behave consistently?

Leo