material and 5 temporary vectors no longer go into the savegame

src/net/torvald/terrarum/gamecontroller/IME.kt

@@ -124,11 +124,7 @@ object IME {
 
             if (langCode.isNotEmpty()) {
                 printdbg(this, "Icon order #${(k+1) / 20} - icons[\"$langCode\"] = iconSheet.get(1, ${k/20})")
-                iconSheet.get(1, k / 20).let {
-                    it.flip(false, false)
-                    icons["$langCode"] = it
-                }
-
+                icons["$langCode"] = iconSheet.get(1, k / 20).also { it.flip(false, false) }
             }
         }