fix issues with [unit] in [side] in mp connect.

this code here might write to the wrong config. 'type' and 'gender' are
also writen below to the correct config. This fixes an error that
prevented 2p Drak forecast to load.

src/game_initialization/connect_engine.cpp

@@ -999,7 +999,8 @@ config side_engine::new_config() const
 		faction.remove_attribute("id");
 		faction.remove_attribute("name");
 		faction.remove_attribute("image");
-		faction.remove_attribute("flag_rgb");
+		faction.remove_attribute("gender");
+		faction.remove_attribute("type");
 		res.append(faction);
 	}