Fixed: Parsing of special episodes that lack a series title

Closes #4688

src/NzbDrone.Core.Test/MediaFiles/EpisodeImport/Aggregation/Aggregators/AggregateEpisodesFixture.cs

@@ -1,6 +1,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using FizzWare.NBuilder;
+using FluentAssertions.Equivalency;
 using Moq;
 using NUnit.Framework;
 using NzbDrone.Common.Extensions;
@@ -28,6 +29,10 @@ namespace NzbDrone.Core.Test.MediaFiles.EpisodeImport.Aggregation.Aggregators
                                  new Mock<IAggregateLocalEpisode>()
                              };
 
+            Mocker.GetMock<IParsingService>()
+                  .Setup(s => s.GetEpisodes(It.IsAny<ParsedEpisodeInfo>(), _series, It.IsAny<bool>(), null))
+                  .Returns(Builder<Episode>.CreateListOfSize(1).BuildList());
+
             Mocker.SetConstant(augmenters.Select(c => c.Object));
         }
 
@@ -140,6 +145,10 @@ namespace NzbDrone.Core.Test.MediaFiles.EpisodeImport.Aggregation.Aggregators
                                    Series = _series
                                };
 
+            Mocker.GetMock<IParsingService>()
+                  .Setup(s => s.GetEpisodes(fileEpisodeInfo, _series, It.IsAny<bool>(), null))
+                  .Returns(new List<Episode>());
+
             Mocker.GetMock<IParsingService>()
                   .Setup(s => s.ParseSpecialEpisodeTitle(fileEpisodeInfo, It.IsAny<string>(), _series))
                   .Returns(specialEpisodeInfo);