GHSA-F9JP-856V-8642 PocketMine-MP: Player entities can still die and drop items in flaggedForDespawn state

Summary When an entity dies, the entity is flagged for despawn, but remains in the World's entity table, meaning it's still accessible by doing World-getEntity$entityId and other methods. The same is true of a player when quitting the server. When a network packet arrives from a client to attack ...