Check for IsSpawned on despawn

Author: EmandM

com.unity.netcode.gameobjects/Runtime/Core/NetworkObject.cs

@@ -1966,6 +1966,12 @@ public void SpawnAsPlayerObject(ulong clientId, bool destroyWithScene = false)
         /// <param name="destroy">(true) the <see cref="GameObject"/> will be destroyed (false) the <see cref="GameObject"/> will persist after being despawned</param>
         public void Despawn(bool destroy = true)
         {
+            if (!IsSpawned)
+            {
+                NetworkLog.LogErrorServer("Object is not spawned!");
+                return;
+            }
+
             foreach (var behavior in ChildNetworkBehaviours)
             {
                 behavior.MarkVariablesDirty(false);

com.unity.netcode.gameobjects/Runtime/Spawning/NetworkSpawnManager.cs

@@ -1318,12 +1318,6 @@ internal void SendSpawnCallForObserverUpdate(ulong[] newObservers, NetworkObject
 
         internal void DespawnObject(NetworkObject networkObject, bool destroyObject = false, bool authorityOverride = false)
         {
-            if (!networkObject.IsSpawned)
-            {
-                NetworkLog.LogErrorServer("Object is not spawned!");
-                return;
-            }
-
             if (!NetworkManager.IsServer && !NetworkManager.DistributedAuthorityMode)
             {
                 NetworkLog.LogErrorServer("Only server can despawn objects");