`[quote]`s use incorrect user avatar after changing avatar

The plugin is active but not in the bug category. After a bug was fixed the topic is closed. If no fix is needed the topic is moved to a different category.

Manually rebuilding fixes the problem for one post. But I would not call that a solution. If there are many posts where the profie picture was not changed, this can be time-consuming.

Also it looks worse if there was a profile picture before, because that is deleted after some time.

Screenshot taken at Usercard Redesign Experiment - #156 by ondrej