Missing user icons on commit partial after changing to /uploads/-/system/ style paths

What

Missing user avatar icons from the commit partial

Possible causes

There was a migration in RC6 to move files from https://gitlab.com/uploads/system/user/avatar/482476/avatar.png to https://gitlab.com/uploads/-/system/user/avatar/201566/avatar.png style URLs in https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/12917

The missing images could be caused by cached partials. Other possibilities are hardcoding an outdated URL, or by a fault in the migration.

Screenshot