(svn r16338) -Codechange: split loading of references to two phases

In the first phase, indexes are stored. In the second phase, indexes are checked for validity and converted to pointers

src/saveload/autoreplace_sl.cpp

@@ -45,6 +45,15 @@ static void Load_ERNW()
 	}
 }
 
+static void Ptrs_ERNW()
+{
+	EngineRenew *er;
+
+	FOR_ALL_ENGINE_RENEWS(er) {
+		SlObject(er, _engine_renew_desc);
+	}
+}
+
 extern const ChunkHandler _autoreplace_chunk_handlers[] = {
-	{ 'ERNW', Save_ERNW,     Load_ERNW,     CH_ARRAY | CH_LAST},
+	{ 'ERNW', Save_ERNW, Load_ERNW, Ptrs_ERNW, CH_ARRAY | CH_LAST},
 };