Fix AttackMove not working properly under certain conditions

This fixes the issue where AttackMove (and possibly other order modes) would not work properly when people were clicking their mouse buttons at the same time. A move order (the default order mode) would be issued instead.

OpenRA.Mods.Common/Widgets/WorldCommandWidget.cs

@@ -184,7 +184,8 @@ namespace OpenRA.Mods.Common.Widgets
 				.Where(a => !a.Disposed && a.Owner == world.LocalPlayer && a.Info.HasTraitInfo<GuardInfo>());
 
 			if (actors.Any())
-				world.OrderGenerator = new GuardOrderGenerator(actors);
+				world.OrderGenerator = new GuardOrderGenerator(actors,
+					"Guard", "guard", Game.Settings.Game.MouseButtonPreference.Action);
 
 			return true;
 		}