[gnome-games] retro-runner: Fix media changing

[Alexander Mikhaylenko <alexm src gnome org>]

commit 8b1c095ec427db00cdf451f36d42f7aa8a6a5914
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Sun Mar 29 03:07:41 2020 +0500

    retro-runner: Fix media changing
    
    It was only done for when media set is null and we use a synthetic one
    with just the uri. Looks like I broke it at some point during refactoring.

 src/retro/retro-runner.vala | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/src/retro/retro-runner.vala b/src/retro/retro-runner.vala
index f0c5c994..df6ef44e 100644
--- a/src/retro/retro-runner.vala
+++ b/src/retro/retro-runner.vala
@@ -78,8 +78,9 @@ public class Games.RetroRunner : Object, Runner {
                        _media_set = new MediaSet ();
                        _media_set.add_media (media);
 
-                       _media_set.notify["selected-media-number"].connect (on_media_number_changed);
                }
+
+               _media_set.notify["selected-media-number"].connect (on_media_number_changed);
        }
 
        public RetroRunner.from_source (Game game, RetroCoreSource source) {