When opening the kickoff launcher, I can navigate the items using my keyboard (up to select the item above, down to select the item below) just fine, but as soon as some search terms are entered this feature appears to stop working - no amount of pressing the up/down keys actually does anything. Pressing a seemingly arbitrary key (I've noticed Esc, Del, Page Up and Page Down work) does enable this functionality, as does erasing the extra search terms.

Reproducible: Always

Steps to Reproduce:
1. Open Kickoff
2. Enter some search terms
3. Try up/down arrow keys to navigate the results
Actual Results:  
Search results can't be navigated using up/down keys (unless an arbitrary key is pressed first or one of the items is highlighted by moving the mouse over it).

Expected Results:  
Search results can be navigated using the up/down keys right away without any steps between doing this and entering the search terms.