Fixed: UI fixes from Sonarr

Co-Authored-By: Mark McDowall <markus101@users.noreply.github.com>

src/NzbDrone.Core/Music/Commands/BulkMoveArtistCommand.cs

@@ -1,3 +1,4 @@
+using System;
 using System.Collections.Generic;
 using NzbDrone.Core.Messaging.Commands;
 
@@ -11,9 +12,39 @@ namespace NzbDrone.Core.Music.Commands
         public override bool SendUpdatesToClient => true;
     }
 
-    public class BulkMoveArtist
+    public class BulkMoveArtist : IEquatable<BulkMoveArtist>
     {
         public int ArtistId { get; set; }
         public string SourcePath { get; set; }
+
+        public bool Equals(BulkMoveArtist other)
+        {
+            if (other == null)
+            {
+                return false;
+            }
+
+            return ArtistId.Equals(other.ArtistId);
+        }
+
+        public override bool Equals(object obj)
+        {
+            if (obj == null)
+            {
+                return false;
+            }
+
+            if (obj.GetType() != GetType())
+            {
+                return false;
+            }
+
+            return ArtistId.Equals(((BulkMoveArtist)obj).ArtistId);
+        }
+
+        public override int GetHashCode()
+        {
+            return ArtistId.GetHashCode();
+        }
     }
 }