When you follow a redirect, at the top of the page, it says, "Redirected from..." like this:
If you click that link, the actual page you were being redirected from is this one:
(No URL because we're disabling the config flag on discoursedb that enables this to happen)
Currently, this extension replaces this text with the target page name, rendering the notice a bit useless (and confusing).
Unfortunately I have no idea how to fix this.