Before, when you clicked on one of the line numbers in the Gerrit diff view, a comment editor for that line opened, but in addition, the URL field of the browser would change to `filename.cpp#a123` (for old line numbers) or `filename.cpp#b128` (for new ones). One could then copy the link and paste it in comments etc, and clicking on such links would go the the change's diff and highlight said line.

With one of the last Gerrit updates, this behaviour broke: Neither does clicking on the line number change the browser's URL, nor, worse, do old and new links with #[ab]\d+ fragments highlight the line anymore.