Core/ClientConfig: Fixes chat window not showing chat, also not saving any config options when you select them, like auto loot, zoom, etc.

Source/Game/Handlers/MiscHandler.cs

@@ -42,15 +42,17 @@ namespace Game
                 return;
 
             AccountData adata = GetAccountData(request.DataType);
-            if (adata.Data == null)
-                return;
 
             UpdateAccountData data = new UpdateAccountData();
             data.Player = GetPlayer() ? GetPlayer().GetGUID() : ObjectGuid.Empty;
             data.Time = (uint)adata.Time;
-            data.Size = (uint)adata.Data.Length;
             data.DataType = request.DataType;
-            data.CompressedData = new ByteBuffer(ZLib.Compress(Encoding.UTF8.GetBytes(adata.Data)));
+
+            if (!adata.Data.IsEmpty())
+            {
+                data.Size = (uint)adata.Data.Length;
+                data.CompressedData = new ByteBuffer(ZLib.Compress(Encoding.UTF8.GetBytes(adata.Data)));
+            }
 
             SendPacket(data);
         }

Source/Game/Networking/Packets/ClientConfigPackets.cs

@@ -76,9 +76,14 @@ namespace Game.Networking.Packets
             _worldPacket.WriteUInt32(Size);
             _worldPacket.WriteBits(DataType, 3);
 
-            var bytes = CompressedData.GetData();
-            _worldPacket.WriteInt32(bytes.Length);
-            _worldPacket.WriteBytes(bytes);
+            if (CompressedData == null)
+                _worldPacket.WriteUInt32(0);
+            else
+            {
+                var bytes = CompressedData.GetData();
+                _worldPacket.WriteInt32(bytes.Length);
+                _worldPacket.WriteBytes(bytes);
+            }
         }
 
         public ObjectGuid Player;