Crash when trying to release another player character

[AntoineDijoux]

Exception: Object reference not set to an instance of an object. (System.NullReferenceException) Target site: Boolean IsClientOwner(Barotrauma.Networking.Client) Stack trace: at Barotrauma.Character.IsClientOwner(Client client) in <DEV>\Barotrauma\BarotraumaServer\ServerSource\Characters\CharacterNetworking.cs:line 48 at System.Collections.Generic.List1.Find(Predicate1 match) at Barotrauma.Networking.GameServer.Update_Patch2(GameServer this, Single deltaTime) at Barotrauma.GameMain.Run() in <DEV>\Barotrauma\BarotraumaServer\ServerSource\GameMain.cs:line 352 at Barotrauma.Program.Main(String[] args) in <DEV>\Barotrauma\BarotraumaServer\ServerSource\Program.cs:line 89

[oiltanker]

This looks like and issue with the base server, although maybe they made it so you can't release a client from the character?
Write down concrete steps to reproduce.