Username edits break profile links

[lizzard]

On the screen to edit my profile, I can change my username as well as my display name. When I change the username, the links to my profile no longer work, but return a "Page not found" error, as they are putting the old username into the url rather than the new username.

So when my username is ehenry, the profile is here:
https://badges.allizom.org/en-US/profiles/profile/ehenry/

But when I change my username to be lizzard, many links including the one on the main page at https://badges.allizom.org/en-US/ still go to https://badges.allizom.org/en-US/profiles/profile/ehenry/, while the working profile is now at https://badges.allizom.org/en-US/profiles/profile/lizzard/.

[lmorchard]

Hmm :( I wonder if the servers are caching too heavily? Will need to investigate.

[lmorchard]

Seems related to this: mozilla/badges.mozilla.org#11