Dropdown conflicts with jquery_ujs on Rails

Created by: fabiob

Today I upgraded my application from Bootstrap 2.0.4 to 2.1.0, and some of the hyperlinks on my dropdowns are not working anymore.

The specific issue is with hyperlinks managed by Rails' jQuery UJS: the "sign off" link uses a data attribute in order to perform a DELETE request, like this:

<a href="/app/users/sign_out" data-method="delete" rel="nofollow"><i class="icon-off"></i>Sign Off</a>

With Bootstrap 2.1.0, the link acts as if the data-method was not present, and clicking it performs a simple GET request. If I downgrade to Bootstrap 2.0.4, it works fine.