twitter/bootstrap — pull request #4634 by jschr (2012-08-23 14:12:50+00:00)
Title: Changed return false in Dropdown toggle.

Changed return false to e.preventDefault() in the toggle function of Dropdown. This is preventing from binding any additional events to a dropdown button.

In my case specifically, my application is highly dynamic so I want to rerender the dropdown list when the button is clicked. This was not possible due to the return false.