Fixed: Rare error when removing pending items that have been rejected

src/NzbDrone.Core.Test/Download/Pending/PendingReleaseServiceTests/PendingReleaseServiceFixture.cs

@@ -1,19 +1,12 @@
 using System;
 using System.Collections.Generic;
-using FizzWare.NBuilder;
-using Marr.Data;
 using Moq;
 using NUnit.Framework;
-using NzbDrone.Common.Extensions;
 using NzbDrone.Core.DecisionEngine;
 using NzbDrone.Core.Download.Pending;
 using NzbDrone.Core.Indexers;
-using NzbDrone.Core.Parser;
 using NzbDrone.Core.Parser.Model;
-using NzbDrone.Core.Profiles;
-using NzbDrone.Core.Qualities;
 using NzbDrone.Core.Test.Framework;
-using NzbDrone.Core.Tv;
 using FluentAssertions;
 
 namespace NzbDrone.Core.Test.Download.Pending.PendingReleaseServiceTests

src/NzbDrone.Core/Download/Pending/PendingReleaseService.cs

@@ -299,12 +299,12 @@ namespace NzbDrone.Core.Download.Pending
 
             foreach (var rejectedRelease in rejected)
             {
-                var matching = pending.SingleOrDefault(MatchingReleasePredicate(rejectedRelease.RemoteEpisode.Release));
+                var matching = pending.Where(MatchingReleasePredicate(rejectedRelease.RemoteEpisode.Release));
 
-                if (matching != null)
+                foreach (var pendingRelease in matching)
                 {
                     _logger.Debug("Removing previously pending release, as it has now been rejected.");
-                    Delete(matching);
+                    Delete(pendingRelease);
                 }
             }
         }