Fix units from transports appearing at load point.

OpenRA.Mods.Common/UpdateRules/Rules/20190314/RemoveMoveIntoWorldFromExit.cs

@@ -0,0 +1,38 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2019 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version. For more
+ * information, see COPYING.
+ */
+#endregion
+
+using System.Collections.Generic;
+using System.Linq;
+
+namespace OpenRA.Mods.Common.UpdateRules.Rules
+{
+	public class RemoveMoveIntoWorldFromExit : UpdateRule
+	{
+		public override string Name { get { return "Remove MoveIntoWorld from Exit."; } }
+		public override string Description
+		{
+			get
+			{
+				return "The MoveIntoWorld parameter has been removed from the Exit trait because it no\n" +
+    				"longer serves a purpose (aircraft can now use the same exit procedure as other\n" +
+					"units).";
+			}
+		}
+
+		public override IEnumerable<string> UpdateActorNode(ModData modData, MiniYamlNode actorNode)
+		{
+			foreach (var t in actorNode.ChildrenMatching("Exit"))
+				t.RemoveNodes("MoveIntoWorld");
+
+			yield break;
+		}
+	}
+}