Fix looping mode not being set on first track after entering song select

Closes #10656.

osu.Game/Screens/Select/SongSelect.cs

@@ -519,6 +519,7 @@ namespace osu.Game.Screens.Select
 
             ModSelect.SelectedMods.BindTo(selectedMods);
 
+            music.CurrentTrack.Looping = true;
             music.TrackChanged += ensureTrackLooping;
         }