In Sencha Touch 2.0, the indexbar was tapable; the user could tap a letter on the right side of a list, and the list would jump there. See example here:

http://try.sencha.com/touch/2.0.0/de...List.indexBar/

This no longer happens in 2.2. Tapping a letter in the indexbar does nothing. The user instead has to tap and drag down the indexbar, which is an odd behavior.

http://try.sencha.com/touch/2.2.0/de...List.indexBar/

How do we bring back the original functionality?