Section deep linking stopped working on upgrade from 4.3.1 to 4.3.2

I have a page with a tabbed section container, with sections that represent actions a user can take. Deep linking is on. One of the sections has the hash link #message, which is linked to from elsewhere in the page (reply buttons on earlier messages). Under 4.3.1, this works fine, the correct tab is opened on clicking the reply button, and an additional &lt;a name="message"&gt; element just above the tabs makes sure the browser scrolls to the right place.

Under 4.3.2, this no longer works. The browser scrolls, but the tab content is not opened. Clicking on the tab does open the content, however.

Further tests seem to show that deep-linking seems to be broken in general, e.g. typing a direct link to http://host/path#message (or other anchors) does not open the section either.

Going back to 4.3.1 fixes my issues.