This chunk of code does nothing useful and only introduces an inconsistency which, as a result, breaks on those pages. It tries to normalize the target of newly added (via thread updater) backlinks to this form, even though all the preceding (regularly loaded) backlinks are another form.

To illustrate: the top link is natural, the second was added dynamically, by the thread updater.
![before](http://puu.sh/8s9l0.png)
![after](http://puu.sh/8s9mZ.png)