Pruning an offline player sometimes fails

[Rumsfield]

Context is that there's a kingdom with a master and an officer. The master exceeds the offline timeout and attempts to be pruned. During the forced exile, the officer was set as the new master, and the old master's UUID was removed from the kingdom's membership list. However, it appears that the old master's kingdom was not updated to Barbarians, and their isBarbarian flag remains false. This data is not flushed to the database either.

On subsequent offline timeout pruning intervals, the old master is identified as not a Barbarian at attempts to force exile again, but it always errors out because the player is not a member of their kingdom, error shown below:

Things to investigate:

• How did the offline player get into this state?
• Is there a logic error on the first time they were pruned, where the officer was successfully given master, and that somehow upset the membership accounting?
• Maybe its fine if the membership doesn't exist, try adjusting the error conditions.

[Rumsfield]

More info is that many other kingdoms (most without any officers probably) were successfully removed when their master was pruned for offline timeout.