2.7から3.1へのアップグレードに失敗: "hotlinked_media_status" が既に存在します

[merefield (Robert)]

Failed to bootstrap / rebuild fail on stable branch

That would be rm /var/discourse/shared/standalone/redis_data/dump.rdb if anyone else needs it. It’s safe to be ran in production.

Run that command (from outside the container!) and rebuild again.