Changing favorite badges leads to FAILED message

[Moin]

Maybe it happens because of

'FAILED' error when trying to un-star the 'Bug Reporter' badge

This bug has been around for a long time. I researched it last year, and here are the steps to reproduce it: As an admin, set max favorite badges to 2, and create at least one badge that can be earned multiple times. As a regular user, set two badges as favorites, one of which is the badge that can be earned multiple times (referred to as Badge A). As an admin, grant the user Badge A again. As a regular user, refresh the page and try to un-star Badge A. You will encounter the error. The reaso…

Did you choose a badge that can be earned multiple times before?