[gnome-games] game-model: Decrement n_games when a game is removed

[Alexander Mikhaylenko <alexm src gnome org>]

commit 696419378c9b3edfffbe8f529387106c5458781b
Author: Neville <nevilleantony98 gmail com>
Date:   Thu Jun 18 21:42:22 2020 +0530

    game-model: Decrement n_games when a game is removed
    
    When a game is removed from the model, n_games wasn't decremented which
    leads to several criticals and unwanted behavior because of wrong game
    count.

 src/core/game-model.vala | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/src/core/game-model.vala b/src/core/game-model.vala
index e17273a0..fe3e8872 100644
--- a/src/core/game-model.vala
+++ b/src/core/game-model.vala
@@ -52,6 +52,7 @@ private class Games.GameModel : Object, ListModel {
 
                var pos = iter.get_position ();
                iter.remove ();
+               n_games--;
 
                items_changed (pos, 1, 0);
                game_removed (game);