Explicitely close the Database before re-opening it

src/utils/reload.cpp

@@ -11,6 +11,7 @@ void open_database()
 #ifdef USE_DATABASE
   const auto db_filename = Config::get("db_name", xdg_data_path("biboumi.sqlite"));
   log_info("Opening database: ", db_filename);
+  Database::close();
   Database::open(db_filename);
   log_info("database successfully opened.");
 #endif