Fix switching to new beatmap not working correctly

osu.Game/Screens/Play/Spectator.cs

@@ -164,7 +164,7 @@ private void userBeganPlaying(int userId, SpectatorState state)
 
             this.state = state;
 
-            attemptStart();
+            Schedule(attemptStart);
         }
 
         private void userFinishedPlaying(int userId, SpectatorState state)
@@ -175,6 +175,7 @@ private void userFinishedPlaying(int userId, SpectatorState state)
             if (replay == null) return;
 
             replay.HasReceivedAllFrames = true;
+            replay = null;
         }
 
         private void attemptStart()
@@ -188,8 +189,6 @@ private void attemptStart()
             if (state.BeatmapID == null)
                 return;
 
-            this.MakeCurrent();
-
             var resolvedBeatmap = beatmaps.QueryBeatmap(b => b.OnlineBeatmapID == state.BeatmapID);
 
             if (resolvedBeatmap == null)
@@ -201,6 +200,7 @@ private void attemptStart()
             var scoreInfo = new ScoreInfo
             {
                 Beatmap = resolvedBeatmap,
+                User = targetUser,
                 Mods = state.Mods.Select(m => m.ToMod(resolvedRuleset)).ToArray(),
                 Ruleset = resolvedRuleset.RulesetInfo,
             };

osu.Game/Screens/Play/SpectatorPlayer.cs

@@ -2,18 +2,36 @@
 // See the LICENCE file in the repository root for full licence text.
 
 using System.Linq;
+using osu.Framework.Allocation;
+using osu.Framework.Screens;
 using osu.Game.Beatmaps;
+using osu.Game.Online.Spectator;
 using osu.Game.Scoring;
 
 namespace osu.Game.Screens.Play
 {
     public class SpectatorPlayer : ReplayPlayer
     {
+        [Resolved]
+        private SpectatorStreamingClient spectatorStreaming { get; set; }
+
         public SpectatorPlayer(Score score)
             : base(score)
         {
         }
 
+        [BackgroundDependencyLoader]
+        private void load()
+        {
+            spectatorStreaming.OnUserBeganPlaying += userBeganPlaying;
+        }
+
+        private void userBeganPlaying(int userId, SpectatorState state)
+        {
+            if (userId == Score.ScoreInfo.UserID)
+                Schedule(this.Exit);
+        }
+
         protected override GameplayClockContainer CreateGameplayClockContainer(WorkingBeatmap beatmap, double gameplayStart)
         {
             // if we already have frames, start gameplay at the point in time they exist, should they be too far into the beatmap.