Name change caused guild/stats issues for a player

[dukio]

I got reported that the player "Nanoflight" (name changed, uuid: f299):

His stats are showing that he is in guild, while in reality he is not. In that guild there's the previous owner of that nickname (uuid: 4d05).

Guild API: https://api.wynncraft.com/public_api.php?action=guildStats&command=Wynns%20Legends

    {
      "name": "Nanoflight",
      "uuid": "4d056f57-bf02-4808-9f22-624110172b0d",
      "rank": "CAPTAIN",
      "contributed": 4424,
      "joined": "2015-11-30T23:53:14.712Z",
      "joinedFriendly": "Nov 30th 2015"
    },

Player stats API v2: https://api.wynncraft.com/v2/player/f299cb17-1da9-4892-9e17-9d550f01146a/stats

      "guild": {
        "name": "Wynns Legends",
        "rank": "CAPTAIN"
      },

If we load player stats api v2 with username, he also has the wrong classes: https://api.wynncraft.com/v2/player/nanoflight/stats
This shows 4 classes, while if we load with uuid he has 5 classes (correct)

I'm not sure what's going on, maybe the guild is just looking for member name instead of uuid?