Autocomplete: showing menu with arrow keys requires too many keypresses

[Scott González]

If you try to show the menu of an autocomplete by pressing the down arrow, the menu will be shown, but you will then need to press the down arrow two more times to highlight the first item in the menu.

This can be seen in the default demo by typing "a", pressing escape, then using the down arrow.

This was introduced in r3789, which has not been released yet.

[Scott González]

This only occurs if a menu item has previously had focus.

Steps to reproduce (from default demo page):

1. press "a" (shows menu)
   
2. press down arrow (highlights first item)
   
3. press escape (hides menu)
   
4. press down arrow (shows menu)
   
5. press down arrow (nothing)
   
6. press down arrow (highlights first item)
   

[Jörn Zaefferer]

Fixed in r3793.