Last modified: 2014-02-12 23:55:11 UTC
In the production site as of 5/15/12, each press of a section heading seems to "eat up" one press of Back. So pressing the section heading once requires two presses of Back to go back to the previous page. The first Back press does nothing. This seems to be linear, in that multiple presses of a section heading cause multiple presses of Back to do nothing.
I think this is a device specific issue originally reported in https://bugzilla.wikimedia.org/show_bug.cgi?id=36848
The problem is every time you open/close a section the hash is manipulated. *** This bug has been marked as a duplicate of bug 36848 ***