לא ניתן לשחזר/לעדכן דיסקורס (PG::InvalidTextRepresentation: שגיאה: תחביר קלט לא תקין עבור סוג שלם: "[]")

Looks like you did it! You should see if you can get attention to this, as I’m pretty sure that migration is supposed to migrate those selectable avatars to the new format.