jquery/jquery-mobile — pull request #3782 by dmethvin (2012-03-09 14:25:33+00:00)
Title: Core 1.7.2 compat

This seems to resolve the issues with Core 1.7.2rc1 and Mobile master. Basically `$.data("name", undefined)` is now considered to be a setter for consistency across all core APIs, and `$.jqmData` was passing `undefined` when it wanted to get a value. Hilarity ensued.