twitter/bootstrap — pull request #7424 by sody (2013-03-29 16:21:33+00:00)
Title: Fixes #7213 Collapse plugin does not correctly set the "collapsed" class.

Collapse plugin does not correctly set the "collapsed" class on accordion heading links.
Patch includes fix and tests.

Before:
http://jsfiddle.net/uzSJD/2/

After:
http://jsfiddle.net/uzSJD/3/