(svn r23083) -Fix: run StartupEngines() if NewGRFs changed during loading a savegame, just like it's running when NewGRFs are changed during a game

src/engine.cpp

@@ -635,7 +635,10 @@ void StartupOneEngine(Engine *e, Date aging_date)
 	}
 }
 
-/** Start/initialise all our engines. */
+/**
+ * Start/initialise all our engines. Must be called whenever there are changes
+ * to the NewGRF config.
+ */
 void StartupEngines()
 {
 	Engine *e;

src/saveload/afterload.cpp

@@ -2648,6 +2648,11 @@ bool AfterLoadGame()
 		}
 	}
 
+	/* When any NewGRF has been changed the availability of some vehicles might
+	 * have been changed too. e->company_avail must be set to 0 in that case
+	 * which is done by StartupEngines(). */
+	if (gcf_res != GLC_ALL_GOOD) StartupEngines();
+
 	/* Road stops is 'only' updating some caches */
 	AfterLoadRoadStops();
 	AfterLoadLabelMaps();