Fix F5 not reloading achievements

src/game_config_manager.cpp

@@ -209,6 +209,10 @@ void game_config_manager::load_game_config(bool reload_everything, const game_cl
 
 			// Start transaction so macros are shared.
 			game_config::config_cache_transaction main_transaction;
+			
+			// Reload achievements
+			achievements_.~achievements();
+			new(&achievements_) achievements();
 
 			// Load mainline cores definition file.
 			config cores_cfg;