I am not able to reproduce this all the time but here is what I do with A4:
on a real iPhone 4 device (could not do this on pc)
Quickly tap & release on the very first list item. When the second page loads, the first subitem is also clicked and the 3rd page is shown ...
Thanks for the details. I was able to reproduce too. Assigned critical priority.
I checked in a fix for this see issue 1331: