Can not click user alias question mark in list view when the username is too long to fit in the column (BB-3805)

Some time ago, when I had an unmapped user, it was possible to click on the question mark in either the overview or commit tab and assign a bitbucket username to it.

This is no longer possible. It still shows the question mark but I can no longer click on it (tested on Firefox and Chrome). However, it does work when viewing a //single// commit. There I can click on the question mark.