Index: binaries/data/mods/public/simulation/helpers/Setup.js
===================================================================
--- binaries/data/mods/public/simulation/helpers/Setup.js
+++ binaries/data/mods/public/simulation/helpers/Setup.js
@@ -71,7 +71,7 @@
 			if (!cmpGarrisonHolder)
 				warn("Map error in Setup.js: entity " + holder + " can not garrison units");
 			else
-				cmpGarrisonHolder.initGarrison = settings.Garrison[holder];
+				cmpGarrisonHolder.initGarrison = clone(settings.Garrison[holder]);
 		}
 
 	let cmpCeasefireManager = Engine.QueryInterface(SYSTEM_ENTITY, IID_CeasefireManager);