Fix loadscreen progressbar "bleeding" on the old MP lobby...

...when running with -s switch

This fixes the more general case and invokes loadscreen_manager.reset()
earlier in the sequence right before attempting to jump into gameplay.

changelog

@@ -20,6 +20,8 @@ Version 1.9.4+svn:
      instead of the keyboard focus.
    * Fixed again: Not showing the twml_exception dialog when gui2 was called
      from Lua (bug #17405).
+   * Fix old multiplayer lobby glitches caused by the loadscreen code when
+     skipping to the lobby with -s <server> command line.
  * WML engine:
    * Allow [color_range] and [color_palette] nodes to be inserted at top-level
      by add-ons to globally define custom ranges and palettes.

src/game.cpp

@@ -2278,6 +2278,8 @@ static int do_gameloop(int argc, char** argv)
 			}
         }
 
+		loadscreen_manager.reset();
+
 		if(game.play_test() == false) {
 			return 0;
 		}
@@ -2310,8 +2312,6 @@ static int do_gameloop(int argc, char** argv)
 			return 0;
 		}
 
-		loadscreen_manager.reset();
-
 		gui2::ttitle_screen::tresult res = game.is_loading()
 				? gui2::ttitle_screen::LOAD_GAME
 				: gui2::ttitle_screen::NOTHING;